Singapore Institute of Power and Gas Process Control and Monitoring of Power and Process Plants Course Code: EPG03 SFC-Eligible | Course Reference Number: TGS-2022011359 COURSE OBJECTIVES Upon completion of this course, participants will be able to: • Understand the basic principles of instrumentation & process control • Understand modern day power plant DCS & PLC based automation system • Understand logic gates, shutdown system logic and voting strategy and its reliability • Understand the basic operation (start-up & shutdown) of the gas turbines (GT), steam turbines (ST), heat recovery steam generator (HRSG) as well as auxiliary equipment • Understand monitoring of plant for deviation from normal operating limits • Review of operational data & identifying key areas of variation • Review plant start-up and shutdown by plant simulation exercises MAIN CONTENTS • Introduction to Distributed Control System • Introduction to Process Control System • Protection instrumentation for GT, ST and HRGS • Review of GT and ST protection logics & algorithms • List of GT-ST-HRSG protection logics & algorithms • Unit start-up & shutdown METHODOLOGY Lecture TARGET AUDIENCE Engineering and technical staff working in the power generation industry COURSE DETAILS Duration : 14 hours Mode of Delivery : Face-to-face or Synchronous E-learning Certification : SIPG Certificate of Completion PDU by PE Board : 12 Additional Requirement/s : Not applicable COURSE FEES Full Course Fee : S$1,400 (before GST) For Singapore Citizens/PR/LTVP+* : S$420 (before GST) For Singapore Citizens (40 years old and above) : S$140 (before GST) Singapore Institute of Power and Gas Pte Ltd UEN: 201427065Z 2 Kallang Sector, Singapore 349277 Ver 3.1_0922 Singapore Institute of Power and Gas ADDITIONAL REMARKS • Trainee must attain at least 75% attendance rate and pass the assessment to receive Certificate of Completion and funding grant (if applicable). • Subsidy of up to 70% is applicable for Singapore Citizens, Permanent Residents or Long-Term Visitor Pass Plus (LTVP+) Holders, subject to funding agency’s approval. • Enhanced subsidy of up to 90% is applicable for Singapore Citizens aged 40 years and above, subject to funding agency’s approval. Note that GST payable will be computed from fee after 70% funding. • Professional Development Unit (PDU) is applicable for Professional Engineers registered under the Professional Engineers (PE) Board only. • All published fees are subject to prevailing GST. CONTACT US For more information, please contact SIPG at +65 6916 7930 or email training-institute@spgroup.com.sg. OTHER SIPG COURSES For more courses, visit our website at: https://www.spgroup.com.sg/about-us/training or Scan the QR code below: Singapore Institute of Power and Gas Pte Ltd UEN: 201427065Z 2 Kallang Sector, Singapore 349277 Ver 3.1_0922

新 能 源 首 次 颁 发 奖 学 金 给 工 院 和 工 教 院 学 生 新 加 坡 能 源 的 奖 学 金 以 已 故 工 运 领 袖 尼 迪 雅 命 名 , 颁 发 给 工 院 生 与 工 教 院 生 的 每 份 奖 学 金 价 值 分 别 为 2 万 4000 元 与 1 万 1000 元 , 学 生 毕 业 后 得 在 新 能 源 服 务 至 少 两 年 。 在 尼 迪 雅 奖 学 金 之 前 , 新 能 源 的 奖 学 金 计 划 只 针 对 大 学 生 。 胡 洁 梅 报 道 ohkm@sph.com.sg 新 加 坡 能 源 公 司 首 次 颁 发 奖 学 金 给 工 艺 教 育 学 院 与 理 工 学 院 学 生 , 为 能 源 领 域 吸 引 与 栽 培 更 多 人 才 。 颁 发 给 工 院 生 与 工 教 院 生 的 每 份 奖 学 金 价 值 分 别 为 2 万 4000 元 与 1 万 1000 元 , 学 生 毕 业 后 得 在 新 加 坡 能 源 服 务 至 少 两 年 。 申 请 者 须 是 修 读 工 程 相 关 课 程 的 学 生 , 已 在 各 自 学 院 修 读 至 少 一 年 。 工 教 院 生 黄 凯 文 ( 左 ) 与 工 院 生 郭 佳 辰 对 能 源 领 域 的 工 作 感 兴 趣 , 奖 学 金 计 划 让 他 们 有 机 会 在 心 仪 的 领 域 学 习 。( 何 家 俊 摄 ) ▲ 奖 学 金 以 已 故 工 运 领 袖 尼 迪 雅 (Nithiah Nandan) 命 名 , 以 肯 定 他 对 新 加 坡 能 源 领 域 与 工 运 作 出 的 贡 献 。 他 的 妻 子 维 玛 拉 昨 天 也 受 邀 出 席 “ 尼 迪 雅 工 艺 教 育 学 院 与 理 工 学 院 奖 学 金 ” 的 颁 奖 仪 式 。 林 瑞 生 : 能 源 领 域 前 景 好 曾 任 官 委 议 员 的 尼 迪 雅 是 在 1966 年 到 公 用 事 业 局 当 日 薪 员 工 , 与 其 他 员 工 创 办 电 力 与 煤 气 业 雇 员 联 合 会 , 后 来 成 为 这 个 联 合 会 的 执 行 秘 书 。 他 在 1997 年 担 任 全 国 职 工 总 会 副 会 长 。 颁 奖 嘉 宾 职 总 秘 书 长 林 瑞 生 致 词 时 阐 述 这 位 建 国 一 代 的 贡 献 。 打 过 好 几 份 工 的 尼 迪 雅 在 加 入 公 用 事 业 局 后 , 为 能 源 领 域 的 员 工 谋 福 利 。 林 瑞 生 说 :“ 能 源 领 域 不 像 早 期 那 样 以 日 薪 工 作 居 多 , 现 在 它 是 一 个 有 前 景 、 有 良 好 工 作 与 薪 水 的 领 域 。” 他 呼 吁 年 轻 人 把 握 这 个 领 域 的 机 会 。 在 尼 迪 雅 奖 学 金 之 前 , 新 加 坡 能 源 的 奖 学 金 计 划 只 针 对 大 学 生 。 昨 天 ,21 名 工 院 与 工 教 院 学 生 正 式 获 颁 奖 学 金 , 其 中 八 名 来 自 工 教 院 , 其 余 来 自 义 安 理 工 学 院 与 新 加 坡 理 工 学 院 。 新 能 源 集 团 总 裁 黄 锦 贤 致 词 时 说 , 尼 迪 雅 奖 学 金 是 新 加 坡 能 源 扩 大 与 建 立 人 才 网 络 的 重 要 元 素 。 他 也 说 , 能 源 是 人 们 生 活 中 无 可 或 缺 的 , 新 加 坡 能 源 的 工 作 是 提 供 可 靠 、 具 成 本 效 益 的 能 源 供 应 。 与 其 他 国 家 相 比 , 新 加 坡 在 能 源 管 理 方 面 的 表 现 名 列 前 茅 。 根 据 去 年 的 成 绩 , 新 加 坡 用 户 平 均 每 115 年 才 会 经 历 一 次 断 电 。 他 受 访 时 说 , 许 多 人 对 能 源 行 业 或 许 有 一 套 既 定 想 法 , 认 为 能 源 工 作 枯 燥 乏 味 , 新 加 坡 能 源 希 望 通 过 不 同 计 划 让 年 轻 人 了 解 这 个 行 业 的 发 展 潜 力 。 设 立 奖 学 金 的 目 的 是 吸 引 人 才 加 入 , 因 此 未 对 每 年 的 尼 迪 雅 奖 学 金 得 主 人 数 设 限 , 数 目 取 决 于 申 请 者 的 素 质 与 公 司 的 需 求 。 工 艺 教 育 西 区 学 院 学 生 黄 凯 文 (21 岁 ) 是 其 中 一 名 尼 迪 雅 奖 学 金 得 主 。 他 说 :“ 我 再 过 几 个 月 就 毕 业 , 毕 业 后 不 愁 没 工 作 。 企 业 为 工 艺 学 院 学 生 提 供 奖 学 金 , 这 对 我 们 是 一 种 肯 定 。 我 对 电 子 工 程 感 兴 趣 , 我 相 信 在 新 加 坡 能 源 这 类 大 机 构 工 作 , 能 学 得 更 多 。” 新 加 坡 工 院 二 年 级 工 程 系 学 生 郭 佳 辰 (18 岁 ) 在 讲 师 的 推 荐 下 成 功 申 请 到 奖 学 金 。 他 说 , 他 在 假 期 时 有 机 会 到 新 加 坡 能 源 实 习 , 这 让 他 对 能 源 领 域 有 更 实 际 的 认 识 , 提 前 为 职 场 做 准 备 。 为 确 保 高 素 质 能 源 服 务 , 新 加 坡 能 源 也 鼓 励 职 员 不 断 提 升 技 能 与 学 历 。 黄 锦 贤 透 露 , 至 今 有 超 过 两 成 非 执 行 级 职 员 获 公 司 赞 助 去 进 修 , 超 过 一 半 考 取 更 高 学 历 后 被 擢 升 。 设 有 工 会 的 新 加 坡 能 源 公 司 有 超 过 3000 名 职 员 , 约 七 成 是 非 执 行 级 职 员 。

A traffic marshal directing a lorry along the special access road off the Central Expressway. Temporary roads pave way to safety A traffic marshal guiding pupils from Hong Wen School across a zebra crossing. Singapore Power has taken various safety measures, including deploying traffic marshals and building special access roads, in some areas where it is putting in deep underground tunnels to upgrade the island’s power infrastructure. ST PHOTOS: STEFFI KOH SingPower acts to prevent accidents during network upgrading project By JANICE TAI TWO temporary roads linked to expressways have been built to allow heavy vehicles to turn off directly into construction sites, bypassing schools and residential areas. The 200m-long special access roads, which cost $4 million, are among safety measures adopted by Singapore Power as it undertakes a $2 billion project to upgrade the island’s power network. The precautions, put in place especially for young children, come in the wake of a rise in fatalities from accidents involving heavy vehicles. There were 44 such deaths last year, up by about 40 per cent from 32 in 2012. Last year, a concrete mixer truck knocked down and killed two young brothers in Tampines, leading to much public outcry. In January, a motorcyclist was decapitated after his bike collided with a tipper truck in Tuas. Singapore Power began construction work on a 35km network of deep underground tunnels to house electricity cables last year. Eighteen worksites were set up across the island to build the tunnels. Two sites – in May Road and Kallang – were found to have high human traffic. “When we first started on the project, we were concerned when we saw schoolchildren sitting on the sides of the road and their parents parking,” Mr Michael Chin, Singapore Power’s managing director of special projects, told The Straits Times yesterday, referring to the May Road site. “So we decided to go beyond established industry practices for safety to minimise any risk,” he added. Singapore Power said it consulted the community and built an extra lane to the Central Expressway in the city-bound direction before May Road site CTE TOWNER ROAD Hong Wen School Source: Singapore Power May Road construction site MAY ROAD Only for heavy vehicles Previous vehicle access Whampoa Canal ST GRAPHICS the Balestier Road exit. This allows heavy vehicles to enter and exit the May Road construction site without taking the narrow roads around Hong Wen School and the residential neighbourhood around McNair Road, Towner Road and May Road. This road opened in May. Earlier in January, another road Kallang site Kolam Ayer CC Previous vehicle access GEYLANG BAHRU Kallang construction site GEYLANG BAHRU LANE PIE Access for all vehicles KALLANG SECTOR ST GRAPHICS was created off the slip road alongside the Pan-Island Expressway, in the direction of Bendemeer in Geylang Bahru. Construction vehicles now do not drive through Geylang Bahru and Geylang Bahru Lane, or around Kallang Basin Swimming Complex, to enter or exit the Kallang site. The Land Transport Authority said it does not track the number of temporary roads created for easier access to construction sites. The Straits Times understands that such a practice is not new, though most of the temporary roads built so far were aimed at easing congestion. For example, an access road to a controversial foreign worker dormitory in Serangoon Gardens was built in 2009 so that buses transporting the workers do not wind through the estate, which already has congestion problems. Besides building the two new access roads, Singapore Power also deploys traffic marshals at nearby schools and conducts road safety talks for the students. Heavy vehicle traffic during school peak hours is restricted and barricades are installed to prevent jaywalking around the construction sites. Retiree Lee Hee Ying, 64, said she makes it a point to walk her nine-year-old grandson to school every day. “It used to be scary to see all the big vehicles passing by, so it is more reassuring now with all the safety measures in place,” she said in Mandarin. Her grandson attends Hong Wen School. For site supervisor Dave Chew, 51, who has lived in the May Road area for about 30 years, the new roads also ease traffic congestion. “It’s not only about safety as the roads used to be packed with cars of parents and heavy vehicles, but now the flow is much smoother,” he said. jantai@sph.com.sg

Consumption_Gas Average consumption of Gas (kWh) Premises Types Sep-23 Oct-23 Nov-23 Dec-23 Jan-24 Feb-24 Mar-24 Apr-24 May-24 Jun-24 Jul-24 Aug-24 HDB 1-Room 36 36 35 36 38 38 37 38 35 34 33 35 HDB 2-Room 37 36 36 36 37 38 38 40 37 34 34 36 HDB 3-Room 52 51 51 49 50 52 53 56 50 48 47 51 HDB 4-Room 64 63 62 61 61 64 66 69 62 58 58 62 HDB 5-Room 71 70 69 67 65 70 73 77 68 64 63 69 HDB Executive 75 74 73 70 70 74 78 82 73 68 68 72 Apartment 87 88 85 83 85 91 94 93 80 76 77 82 Terrace 103 107 105 103 100 108 120 114 93 97 98 98 Semi-Detached 118 118 123 118 115 120 133 130 117 105 115 115 Bungalow 202 216 201 200 213 192 220 234 209 168 197 185

SAFETY PERFORMANCE CRITERIA Introduction 1. With effect from 1 April 2022, all tenders called by Singapore Power Limited and its Singapore incorporated subsidiaries (SP Group) will include a tender evaluation criteria that takes into account the participating tenderer’s safety performance in their contracts with SP Group. With effect from 1 April 2023, this criteria is extended to subcontractors with LTI. 2. This is in line with SP Group’s core value that safety is our highest priority and all our suppliers and contractors must continuously adopt good safety practices and prevent accidents from occurring. Tender Evaluation Criteria 3. All open and closed tenders published on or after 1 April 2022 by SP Group shall include the new Safety Performance criteria as part of its tender evaluation criteria. 4. The Safety Performance criteria shall be a 1 st level evaluation criteria together with Price and/or Quality and shall be of a overall weightage of not less than 10% of the total evaluation score. 5. For tenders that is evaluated based solely on lowest compliant priced tender with no requirement to assess quality (e.g supply of standard items such as HP toner cartridges), the following evaluation method shall apply: Total Evaluation Score (100%) = Safety Performance (10%) + Price (90%) 6. For tenders that is evaluated based on Price and Quality factors, the following evaluation method shall apply: Total Evaluation Score (100%) = Safety Performance (10%) + Price (X%) + Quality (Y%) Where X + Y = 90% 7. For the avoidance of doubt, other safety related evaluation criteria such as the proposed safety measures to be taken for the tendered project or the tenderer’s past safety awards shall be accounted separately under the Quality score. Safety Performance 8. Safety Performance of tenderers shall be assessed by taking into account the occurrence of any Loss Time Injury (LTI) incidents in the past 2 years prior to tender closing date. In the event of the occurrence of any incidents that results in fatality or serious injury in the past 1 year prior to the tender closing date, the bid submitted by the tenderer may be rejected by SP Group. For the avoidance of doubt only incidents occurring on or after 1 April 2022 will be considered. 9. Loss Time Injury incidents for the purpose of this Safety Performance criteria refers to any incidents where: a. It is a work-related injury occurs which results in lost work time of one work day or more; b. The incident occurred while the tenderer was carrying out works under a contract with SP Group; and c. The incident occurred on or after 1 April 2022. 10. Any incidents that occur in the course of the Tenderer’s work in contracts with other parties are not accounted under this criteria’s scoring but may considered in the final decision for award.

FORM - P PERMISSION FOR BREAKING OF METER TERMINAL SEALS FOR BULK SHIFTING/ REPLACEMENT OF METERBOARD IN MULTI-TENANTED BUILDING. To: HOS, Elect Installation From [Name of LEW]: Company: SP Services Ltd Company: Email: installation@spgroup.com.sg Email: Date: A/C No.: Office Telephone No.: Handphone No.: Project Description: I, the appointed LEW for the above work, wish to seek the permission of SP Services Ltd to break the meter terminal seal to carry out the * Shifting / Replacement of meterboards at the following premises: ______________________________________________________________________________________________. (site address) The Managing Agent for the above premises and the date to break the meter terminal seals are as follow: Address & Company Stamp of Managing Agent of Building / Town Council Date To Break Meter Terminal Seals Official Stamp of Managing Agent of Building * Notice of Shut-down of Electricity Supply served to the block is attached. I will compile and submit the following documents to Elect Installation of SP Service Ltd within 14 days from the date of breaking the meter terminal seal, for an inspection by SP Services Ltd. (i) Form CS/5 (Application For Inspection of Electrical Installation) (ii) Form F (Certificate of Bulk Shifting / Replacement Of Meterboards in Multi-Tenanted Buildings) (iii) SP PowerGrid’s approval letter of meterboard layout plan (iv) Single-Line Drawings Name & Signature of LEW Licence No. …………………………………………………………………………………………………………………………………………… FOR OFFICIAL USE To : ____________________ ( LEW In-Charge) We acknowledge the receipt of your application on ___________ (date). Your date of breaking the meter terminal seals has been noted. Please note that LEW must be physically present during the course of the work. For clarification, please contact us at installation@spgroup.com.sg for HOS (Elect Installation) SP Services Ltd. cc HOS (Electrical Meters) Email: emtrfax@spgroup.com.sg 1 Mar 22

SAFETY PERFORMANCE CRITERIA Introduction 1. With effect from 1 April 2022, all tenders called by Singapore Power Limited and its Singapore incorporated subsidiaries (SP Group) will include a tender evaluation criteria that takes into account the participating tenderer’s safety performance in their contracts with SP Group. 2. This is in line with SP Group’s core value that safety is our highest priority and all our suppliers and contractors must continuously adopt good safety practices and prevent accidents from occurring. Tender Evaluation Criteria 3. All open and closed tenders published on or after 1 April 2022 by SP Group shall include the new Safety Performance criteria as part of its tender evaluation criteria. 4. The Safety Performance criteria shall be a 1 st level evaluation criteria together with Price and/or Quality and shall be of a overall weightage of not less than 10% of the total evaluation score. 5. For tenders that is evaluated based solely on lowest compliant priced tender with no requirement to assess quality (e.g supply of standard items such as HP toner cartridges), the following evaluation method shall apply: Total Evaluation Score (100%) = Safety Performance (10%) + Price (90%) 6. For tenders that is evaluated based on Price and Quality factors, the following evaluation method shall apply: Total Evaluation Score (100%) = Safety Performance (10%) + Price (X%) + Quality (Y%) Where X + Y = 90% 7. For the avoidance of doubt, other safety related evaluation criteria such as the proposed safety measures to be taken for the tendered project or the tenderer’s past safety awards shall be accounted separately under the Quality score. Safety Performance 8. Safety Performance of tenderers shall be assessed by taking into account the occurrence of any Loss Time Injury (LTI) incidents in the past 2 years prior to tender closing date. In the event of the occurrence of any incidents that results in fatality or serious injury in the past 1 year prior to the tender closing date, the bid submitted by the tenderer may be rejected by SP Group. For the avoidance of doubt only incidents occurring on or after 1 April 2022 will be considered. 9. Loss Time Injury incidents for the purpose of this Safety Performance criteria refers to any incidents where: a. It is a work-related injury occurs which results in lost work time of one work day or more; b. The incident occurred while the tenderer was carrying out works under a contract with SP Group; and c. The incident occurred on or after 1 April 2022. 10. Any incidents that occur in the course of the Tenderer’s work in contracts with other parties are not accounted under this criteria’s scoring but may considered in the final decision for award.

[●insert name of contractor●] Date: [●] [●insert address of contractor●] Co. Registration No.: [●] Your Ref: [●] Our Ref: [●] Dear Sir REQUIREMENTS FOR EARTHWORKS AT [●insert location●] 1. We refer to your Notice for Commencement of Earthworks (“NCE”) at the above-mentioned location ("Worksite") dated [●] and note that you will commence earthworks (as defined in Section 2 of the Gas Act (Cap. 116A) (the “Act”)) ("Earthworks") from [●]to [●]. 2. Pursuant to Section 32(3)(a) of the Act, you are required to comply with the following requirements when carrying out the Earthworks: 2.1. Trial Holes 2.1.1. As the gas plan obtained from SP PowerGrid Limited (“SPPG”) (which shows the necessary information on the location of the gas plant (as defined in Section 2 of the Act) ("Gas Plant") and gas pipes (conveying gas in a gas pipeline network as defined in Section 2 of the Act) ("Gas Pipes")) ("SPPG Gas Plans") only indicate the approximate location of Gas Pipes, you shall dig an adequate number of appropriate trial holes by manual means to determine the exact location of medium pressure (“MP”) Gas Pipes and low pressure (“LP”) Gas Pipes prior to the carrying out of any Earthworks. 2.1.2. When working in the vicinity of a MP Gas Pipe or a LP Gas Pipe you shall only use powered mechanical equipment for the initial breaking of the surface layer of hardcore/premix. You shall not use powered mechanical equipment below the surface layer of hard-core/premix and shall only use manual excavation with hand tools. 2.1.3. You shall contact Distribution Pipelines Operations and Maintenance section, SPPG (“DPOM”) if you are unable to locate the MP Gas Pipe and/or the LP Gas Pipe by digging the trial holes. 2.1.4. You shall not dig any trial holes in the vicinity of gas transmission pipeline (as defined in Section 2 of the Act) (“GTP”) without the written consent from Transmission Pipelines Operations and Maintenance section, SPPG (“TPOM”). You shall comply with any additional requirements that may be imposed by SPPG. Page 1 of 9 2.1.5. After the trial holes have been dug, you shall ensure that photographs of the trial holes are taken showing the dimensions of trial holes and their location. You shall make these photographs available to SPPG upon request. 2.2. Marking of Gas Pipes, Engagement of Surveyor and Purchase of Surveyed Drawings 2.2.1. Prior to the carrying out of any Earthworks when working in the vicinity of a GTP, you are required to schedule a meeting with TPOM officers to present the details of the Earthworks to be carried out and to purchase the as-surveyed drawing from the Mapping & Earthworks Administration section, SPPG (“MEA”). 2.2.2. After purchasing the as-surveyed drawing, you shall engage a registered land surveyor to peg out the Gas Pipe positions for GTP and provide adequate and prominent markings to show the Gas Pipe positions. You shall ensure that all Gas Pipe markings are durable and prominent and are not disturbed, removed or tampered with. You shall also ensure that the Gas Pipe markings are reapplied from time to time to ensure that they remain conspicuous. 2.3. Risk Management (For MP & GTP) 2.3.1. You shall assess the impact of carrying out the intended Earthworks on any Gas Plant or Gas Pipe and prepare a report detailing such assessment. 2.3.2. If there are changes to the schedule for the carrying out of the Earthworks or changes in Earthworks work methods, you shall study the implications, review the earlier assessment that had been carried out and promptly notify SPPG in writing if there are any changes to the earlier assessment. 2.3.3. The report of such assessment shall be made available to SPPG on request. Such report shall also be made known to all personnel of all working levels in the team handling the project in which the Earthworks are or are to be carried out ("Project"), including sub-contractors and any third party who are involved in any way with any part of the intended Earthworks. 2.4. Worksite Management 2.4.1. You shall provide a full-time site supervisor to monitor the site operations for the entire duration of any Earthworks. You shall ensure that the site supervisor is familiar with these requirements. 2.4.2. You shall ensure that daily site briefings with site workers are conducted (in languages that are understood by all workers) to remind them about the location of the Gas Pipes and the measures to be taken to prevent damage to the Gas Pipes. You Page 2 of 9 shall keep records of such daily briefings (which shall include but are not limited to date and time, venue and person conducting the briefings, contents of briefings and the list of site workers who have attended such briefings). You shall also disallow any site worker who has not attended such briefings from being involved with any part of the intended Earthworks. New staff must be briefed before they start work. 2.4.3. You shall inform Earthworks Surveillance & Patrolling section, SPPG (“ESP”) officers of the identity of the site management / Registered Excavator Operator (“REO”), the proposed methods of carrying out of the Earthworks and/or location of the proposed Earthworks. You shall also inform the ESP officers if there are any changes to the above. 2.4.4. You shall ensure that information on the presence of Gas Pipes in the vicinity of the Worksite and all mitigating measures that can be taken to prevent damage to such Gas Pipes, have been communicated and adhered to by all personnel of all working levels in the Project team, including sub-contractors and any third party who are in any way involved with any part of the intended Earthworks. 2.4.5. SPPG may, from time to time and at its sole discretion, deploy its officers to the Worksite to inspect and monitor the status of your works. Notwithstanding the deployment of SPPG’s officers at the worksite, you shall continue to be responsible for discharging your obligations under this Letter of Requirements (“LRe”) and for the performance of your works. SPPG shall not assume any liability for any noncompliance by you of any such obligation or non-performance of your works. 2.5. Seek Consultation with SPPG: Gas Operations (DPOM and TPOM sections) 2.5.1. You shall contact and consult TPOM and/or DPOM section(s) when the proposed Earthworks are within 5 metres of any GTP and/or 3 metres of any MP Gas Pipes respectively. You shall only carry out any Earthworks within the vicinity of Gas Pipes after seeking advice and obtaining approval from SPPG. 2.5.2. You shall contact DPOM or our 24-hour Customer Service Centre if you find any live or abandoned Gas Pipes in the course of carrying out any Earthworks at the Worksite which have not been shown in the SPPG Gas Plan. 2.5.3. You shall also contact and consult with SPPG in the following circumstances: 2.5.3.1. If it is reasonable to expect that the Earthworks could cause ground vibrations or ground movements; and/or Page 3 of 9 2.5.3.2. If there is a need for Earthworks to be carried out below Gas Pipe slabs. 2.6. Protection of Gas Pipe and Gas Pipe Diversion 2.6.1. You shall take all steps to ascertain the presence of any Gas Pipe within the boundary and/or the vicinity of the Worksite prior to the carrying out of any Earthworks. You shall take all necessary measures and due care to prevent damage to the Gas Pipes. 2.6.2. You shall relocate your intended Earthworks away from any gas pipeline or submit an official request to SPPG to divert out of the Worksite any Gas Pipe that will be affected by the intended Earthworks and bear any and all costs incurred from such diversion. 2.6.3. If the proposed Earthworks involve overcrossing, undercrossing, exposing of, or diversion of Gas Pipes, you shall, prior to the carrying out of any Earthworks: 2.6.3.1. Contact and consult SPPG; 2.6.3.2. Provide SPPG with a detailed work method statement and proposed measures to protect the Gas Pipes; 2.6.3.3. Assess the risk of damage to the Gas Pipes and submit the report of such assessment to SPPG; and 2.6.3.4. Comply with any further and additional requirements that may be imposed by SPPG. 2.6.4. You shall not construct any structure (temporary, permanent, or otherwise) over any Gas Pipe. 2.6.5. You shall not place any heavy equipment or stock pile above any Gas Pipe. 2.6.6. You shall not allow any heavy machinery or vehicular movement above any Gas Pipe. 2.6.7. You shall backfill with quarry dust during reinstatement and do not dump any debris / concrete trash / sharp objects or place any heavy object on top of the Gas Pipe corridor. 2.6.8. You shall ensure proper and adequate shoring and shuttering to prevent soil movement and/or soil subsidence which may affect any Gas Pipe. 2.6.9. You shall carefully select positions for the sinking and driving of earth rod, sheet piling, bore piling, diaphragm walling, installing of reinforced concrete/steel piles by Page 4 of 9 percussion or jack-in method, bore piling casing, installing of ground anchors, pressure grouting, installing of tubes, installing of poles, hand augering, pipe jacking, shoring, soil investigating, bore drilling and horizontal directional drilling, in order to avoid damage to any Gas Pipes. You shall do this by, amongst other things: 2.6.9.1. Referring to the SPPG Gas Plan and digging appropriate trial holes by manual means, to confirm the presence or absence of any Gas Pipe prior to the carrying out of any Earthworks. For trial hole to be dug in the vicinity of GTP, you shall obtain written consent from TPOM. 2.6.9.2. For pipe jacking and horizontal directional drilling, you shall consider additional factors such as loading from the construction plants, ground conditions, bore diameter, possible deviation of the drilling. You shall ensure that there is a minimum clearance of 2m between the path of drilling/boring device and any Gas Pipe that is in the vicinity of the Earthworks. 2.6.10. You shall provide adequate protection to unexposed or reinstated Gas Pipes that are within the work area when carrying out of any Earthworks. 2.6.11. You shall ensure that all surface boxes are accessible at all times and are not covered by tarmac, earth, landscape, equipment, stock pile or any other material. 2.6.12. You shall ensure that no static loads (i.e. loads that do not change in magnitude or position with time) are placed above the surface boxes. 2.6.13. You shall exercise due care and diligence when removing any rock, boulder, wood, metal rod, sharp object or other obstacles which are in the vicinity of Gas Pipes. 2.6.14. You shall ensure that gas free tests are carried out by a competent person along the Gas Pipe route at regular intervals throughout the duration of the Project. You shall not carry out any processes that may be a source of ignition in the vicinity of any Gas Pipes. You shall also take all other necessary mitigating measures to prevent ignition of escaped gas, if any. 2.6.15. You shall ensure that a clearance of at least 5 metres is maintained between the external wall of LP Gas Pipe and any piles and/or diaphragm wall and a clearance of at least 0.3 metres is maintained between the external wall of LP Gas Pipe and other services when working in the vicinity of LP Gas Pipe. You shall also ensure that no services are laid directly on top and parallel to any existing Gas Pipes. 2.6.16. You shall not expose, suspend and/or otherwise interfere with any Gas Pipes, without the written consent of SPPG. Page 5 of 9 2.6.17. You shall stop all Earthworks and call SPPG for advice whenever in doubt. 2.6.18. You shall stop work immediately and report to the 24-hour Customer Service Centre upon any damage or suspected damage to any Gas Pipe (including surface damage without gas escaping) or the discovery of any gas leak. You and/or your workers shall not attempt to repair or modify damaged Gas Pipes. 2.6.19. Damaging a Gas Plant or a Gas Pipe(s) may cause a delay in the completion of the Project as SPPG will need time to investigate and carry out repair work as necessary. Any repair costs may have to be borne by you. 2.6.20. SPPG shall be entitled to ask you to stop work with immediate effect in the event of non-compliance to this LRe. SPPG shall not be liable to you in any way for any losses, claims or damages arising from or in connection with such stop work requests. 2.6.21. You shall comply with any requirements as reasonably prescribed by SPPG in SPPG’s review and endorsement of the relevant method statement and any other documents submitted by you in relation thereto for the Earthworks. 2.7. NCE Submission by Sub-Contractor(s), NCE Extension and Site Meeting 2.7.1. You and/or your representatives shall attend meetings with SPPG officers as and when required. 2.7.2. When working in the vicinity of a GTP or MP Gas Pipe, you shall carry out a site visit jointly with SPPG officers before carrying out any Earthworks specified under the submitted NCE. 2.7.3. In the event that you engage a sub-contractor to carry out any Earthworks within the vicinity of any Gas Pipes, you shall ensure that such sub-contractor submits the appropriate NCE prior to the carrying out of any Earthworks in the vicinity of any Gas Pipes. 2.7.4. If, at any stage of your Project, there is a likelihood that the Earthworks may continue beyond the anticipated completion date and/or beyond the work boundary as declared in the NCE which you have submitted to SPPG, you shall notify SPPG in writing of the new date of completion and/or the new work boundary (as applicable) by submitting a new NCE. 2.7.5. You shall obtain a new SPPG Gas Plan from SPPG prior to submitting the new NCE. Prior to carrying out any Earthworks, you shall consult SPPG to ascertain if there are Page 6 of 9 changes to the gas plans that you possess. In the event there are changes to the gas plans, you shall purchase fresh gas plans from SPPG. 2.8. Powered Mechanical Excavation 2.8.1. You shall engage only a REO to operate a powered mechanical excavator. 2.8.2. You shall ensure that powered mechanical excavation is only used, under the close standing supervision of a full time site supervisor, for the surface layer of hardcore/premix when working near or above any Gas Pipe. 2.8.3. You shall not use a powered mechanical excavator, whether for mechanical excavation or otherwise (irrespective of soil condition), below the surface layer of hard-core/premix when working near or above any Gas Pipe. You shall only use manual excavation with hand tools below the surface layer of hard-core/premix. 2.8.4. You shall not excavate deeper than the PVC warning tape or the top of any Gas Pipe if there is no PVC warning tape. You shall immediately cease all further Earthworks and consult the DPOM for advice on working with the Gas Pipes when exposed Gas Pipes are encountered in the course of carrying out any Earthworks. 2.9. Pressure Grouting Works 2.9.1. You shall ascertain the alignment of Gas Pipes within the grouting influence zone prior to the carrying out of any Earthworks. 2.9.2. You shall use the necessary ground instrumentations to monitor the effect of the grouting works and ensure that adequate protective measures are provided to protect any Gas Pipes within the grouting influence zone. 2.10. Permit-to-Work (“PTW”) and Records 2.10.1. You shall implement a PTW system to monitor and ensure that all Earthworks are properly tracked and controlled if such Earthworks are to be carried out in the vicinity of GTP and MP Gas Pipes. Under the PTW system, such Earthworks shall be approved by the manager of the Project or his authorised deputy. You shall periodically audit the PTW system for its effectiveness. 2.10.2. You shall display prominently and make available the most up to date NCE, SPPG Gas Plans and these requirements at the Worksite where the proposed Earthworks are to be carried out. Page 7 of 9 2.10.3. You shall keep progressive records (Photographs / Movement Chart) of the Earthworks that have been carried out including, but not limited to, work schedules and location of trial holes. 3. Notes: 3.1. These requirements are applicable to all persons who carry out any Earthworks and strict compliance is required, unless otherwise permitted in writing by SPPG. Please consult the relevant SPPG section, if necessary. 3.2. The approximate locations of the Gas Pipes are shown in the SPPG Gas Plan. The respective operating pressure regime of the Gas Pipes is indicated against the Gas Pipelines as shown in the SPPG Gas Plan. The default pressure regime (when there is no indication of pressure regime) is low pressure. Other LP Gas Pipes are indicated as “LPA” and “LPB” in the SPPG Gas Plan. 3.3. In the low pressure distribution network, there are valves, syphons and standpipes which are indicated as “V”, “SY” and “SP” respectively. 3.4. You shall take note of the presence of standpipes and/or valve stems that are encased in a PVC pipe and accessible from surface boxes installed at ground level and not damage such fittings or cover. 3.5. The requirements stated above are not exhaustive. Additional requirements may be issued from time to time by SPPG. These additional requirements, together with the requirements in this letter, shall form the full list of requirements that must be complied with at all times. You are advised to carry out all necessary assessments and take all necessary precautions to prevent damage to any existing Gas Plant and/or Gas Pipe. 3.6. Pursuant to Section 32(3)(a) of the Act, it shall be the duty of the person who commences or carries out, or causes or permits the commencement or carrying out of, any Earthworks to comply with the reasonable requirements of SPPG for the prevention of damage to a Gas Plant or Gas Pipe. Pursuant to Section 32(7) of the Act, any person who contravenes Section 32(3)(a) shall be guilty of an offence and shall be liable on conviction to a fine not exceeding $100,000 or to imprisonment for a term not exceeding 5 years or both. Further, Section 32A(1) of the Act provides that any person who, removes, destroys or damages any Gas Plant or Gas Pipe which is part of a Gas Pipeline Network owned by, or under the management or control of, SPPG, shall be guilty of an offence and shall be liable on conviction to a fine not exceeding $1 million or to imprisonment for a term not exceeding 5 years or to both. 3.7. Damaging a Gas Plant or a Gas Pipe may also cause fatalities or severe injuries to personnel as well as damage to property. Page 8 of 9 3.8. Should you require any further clarification, please contact Follow up officer at [●] and/or the respective sections of SPPG as listed in the table below: SPPG Section Telephone Email TPOM 6916 6136/ 6916 6124 gasenquiry@spgroup.com.sg DPOM 6916 5947/ 6916 5908 gasenquiry@spgroup.com.sg ESP 6916 5119 espsection@spgroup.com.sg MEA 6916 5021/ 6916 5022 mea@spgroup.com.sg 24-hour Customer Service Centre 1800 752 1800 - Yours faithfully, [●] for HEAD OF SECTION EARTHWORKS SURVEILLANCE & PATROLLING SECTION As agent for and on behalf of POWERGAS LTD. Page 9 of 9

KENALI telah me sistem p universit 6 Berita Berita Harian, Local 06, 4 Mar 2016 SISTEM RANGKAIAN PENDINGINAN DAERAH BAWAH TANAH Beberapa bangunan di Marina Bay dapat jimat tenaga lebih 40% SISTEM PENDINGINAN BAWAH TANAH: Encik Wong (dua dari kiri) meninjau sistem rangkaian pendinginan daerah bawah tanah Singapore District Cooling (SDC) yang berupaya membantu bangunan di kawasan kewangan Marina Bay menjimatkan tenaga. – Foto SINGAPORE POWER BEBERAPA bangunan utama di kawasan kewangan Marina Bay kini dapat menjimatkan tenaga sebanyak lebih 40 peratus dengan sistem rangkaian pendinginan daerah bawah tanah. Menteri Pembangunan Negara, Encik Lawrence Wong, merasmikan operasi loji sistem Singapore District Cooling (SDC) – sebuah anak syarikat di bawah Singapore Power (SP) – yang baru selesai projek pengembangannya semalam. Pendinginan daerah melibatkan proses penghasilan air sejuk yang disalurkan kepada bangunan di daerah itu, yang antara lain bagi sistem hawa dingin di bangunan-bangunan di situ. Selain berupaya menjimatkan tenaga, sistem bawah tanah dengan rangkaian paip sepanjang lima kilometer itu juga boleh membantu bangunan di kawasan tersebut mengatasi cabaran ruang mereka dan menjimatkan kos kerana kini mereka tidak perlu memasang alat pendingin atau menara pendingin di bumbung bangunan sendiri. Ketua Pegawai Eksekutif (CEO) Penguasa Pembangunan Semula Bandar (URA), Encik Ng Lang, menyifatkan usaha membangunkan rangkaian pendinginan daerah bagi kawasan Marina Bay itu sebagai idea berani yang memakan masa bertahun-tahun untuk menjadi kenyataan. Sebagai contoh, projek itu melibatkan kawasan lantai kasar (GFA) kira-kira 1.25 juta meter persegi di Marina Bay yang ditetapkan sebagai zon rintis bagi projek Sistem Pendinginan Daerah itu. Pemaju di One Raffles Quay dan Marina Bay Sands membina ruang bagi loji pendinginan daerah itu sebagai sebahagian syarat tender tanah pemerintah. Hasilnya, dua loji – satu di besmen One Raffles Quay dan satu lagi di besmen Bayfront Avenue di Marina Bay Sands – disepadukan sementara loji yang ketiga terletak di One Marina Boulevard. “Hari ini kita meraih manfaatnya hasil perancangan awal dan reka bentuk yang difikirkan dengan teliti, serta usaha mencipta lebih ruang dan menjimat kos bagi mengurangkan pengeluaran karbon,” kata Encik Ng. Dalam pada itu, SDC turut mengumumkan semalam bahawa Marina One di Marina South telah menandatangani perjanjian dengan pihaknya. Ini bermakna SDC kini menawarkan khidmat kepada 12 pelanggan secara keseluruhan. KEP versiti masa se Pelb pelajar univers Lant versiti mengam 2016 b hupun jar dari Men 2016, E but jug sampin layu/Isl jian di Jom si iaitu NUS show y didikan hal pen univers Aca Politek NUS. NUS NUS! 2 hingga Fakulti (NUS). Source: Berita Harian © Singapore Press Holdings Limited. Permission required for reproduction.

Consumption_Elect Average consumption of Electricity (kWh) Premises Types Jun-21 Feb-22 Mar-22 Apr-22 May-22 Jun-22 Jul-22 Aug-22 Sep-22 Oct-22 Nov-22 Dec-22 Jan-23 Feb-23 Mar-23 Apr-23 May-23 Jun-23 Jul-23 Aug-23 Sep-23 Oct-23 Nov-23 Dec-23 Jan-24 HDB 1-Room 154 135 128 140 145 150 139 143 139 132 130 127 125 121 111 127 142 152 147 145 143 146 144 135 126 HDB 2-Room 204 182 169 183 189 199 186 186 184 172 171 165 166 158 148 166 185 202 190 190 189 190 188 176 164 HDB 3-Room 292 253 239 259 268 276 259 264 257 245 245 235 233 226 212 242 270 288 271 272 269 274 269 247 236 HDB 4-Room 400 349 329 354 370 380 356 361 354 333 334 320 318 309 289 326 367 391 371 371 367 374 370 342 321 HDB 5-Room 465 408 382 411 431 445 414 420 416 388 389 373 369 363 338 381 428 456 437 434 427 437 436 401 367 HDB Executive 574 498 470 500 527 543 506 514 504 472 476 448 453 443 414 473 528 561 531 536 528 541 530 478 456 Apartment 609 503 488 533 573 576 527 523 519 498 496 469 450 425 414 465 543 585 546 514 515 537 541 483 430 Terrace 891 811 771 816 873 865 817 833 815 781 785 752 748 727 686 756 867 902 868 866 859 890 881 804 740 Semi-Detached 1,225 1,099 1,029 1,090 1,196 1,174 1,092 1,097 1,091 1,030 1,054 995 997 962 930 1,024 1,182 1,233 1,159 1,134 1,150 1,187 1,174 1,065 1,019 Bungalow 2,433 2,141 2,063 2,218 2,365 2,403 2,168 2,144 2,146 2,004 2,182 1,986 2,073 1,938 1,901 2,016 2,303 2,482 2,320 2,219 2,298 2,308 2,358 2,075 2,106