Construction, Design, Supply, Installation, Testing & Commissioning for System Improvement and DMA Formation of Lot-1) MOHARA Water Supply System and Lot-2) Modunaghat and Kalurghat Water Supply System — Chattogram Water Supply Improvement Project

Memo No.: 46.06.2000.000.335.41.0017.25-129 Date: 12/07/2026 Specific Procurement Notice Request for Proposals for Works (Design and Build) (Single stage, two envelope process without initial selection) Employer: Chattogram Water Supply and Sewerage Authority Project: Chattogram Water Supply Improvement Project Contract title: Design, Construction, Supply, Installation, Testing & Commissioning for System Improvement and DMA Formation Lot 1: MOHARA Water Supply System; Lot 2: Modunaghat and Kalurghat Water Supply System. Country: Bangladesh IDA Credit No.: 7674-BD & 7675-BD RFP No: CWSIP/W-1: Lot-1 and Lot-2 Issued on: 12 July, 2026 1. The Government of the People's Republic of Bangladesh (GoB) has received financing from the World Bank toward the cost of the Chattogram Water Supply Improvement Project (CWSIP), to be implemented by Chattogram Water Supply and Sewerage Authority (CWASA), an autonomous entity of the GoB, and intends to apply part of the proceeds toward payments under the contract for Design, Construction, Supply, Installation, Testing & Commissioning for System Improvement and DMA Formation, Lot 1: MOHARA Water Supply System, Lot 2: Modunaghat and Kalurghat Water Supply System. For this contract, the Borrower shall process the payments using the Direct Payment disbursement method, as defined in the World Bank’s Disbursement Guidelines for Investment Project Financing 2. The Chattogram Water Supply and Sewerage Authority (CWASA) now invites sealed Proposals from the eligible Proposers for Design, Construction, Supply, Installation, Testing & Commissioning for System Improvement and DMA Formation, Lot 1: MOHARA Water Supply System, Lot 2: Modunaghat and Kalurghat Water Supply System. The works include: Laying of new HDPE and DI pipes, laying new service connection pipes, establishment of DMAs, new reservoir and pumping station, etc. The works under both lots are located in Chattogram. The estimated completion period each of the two lots is 1260 days. More details are provided in the RFP documents. 3. Proposers may submit Proposal for one or both lots, as further defined in the RFP Document. 4. The procurement will be conducted through international competitive procurement using Request for Proposals (RFP) as specified in the World Bank’s “Procurement Regulations for IPF Borrowers” Fifth Edition, September, 2023. (“Procurement Regulations”), and is open to all eligible Proposers as defined in the Procurement Regulations. 5. Interested eligible Proposers may obtain further information from Md. Rejaul Ahsan Chowdhury, Project Director, Chattogram Water Supply Improvement Project (CWSIP), Chattogram WASA, email: rejaulahsan87@gmail.com and inspect the RFP Document during office hours 0900 to 1600 hours Local Bangladesh Time (GMT + 6 Hrs) at the address given below. A read-only copy of the RFP documents will also be uploaded in www.ctg-wasa.org.bd . 6. A complete set of the RFP Document comprising four (4) volumes, Volume 1 (Part 1- Request for Proposal Procedures and Part 3- Conditions of Contract and Contract Forms), Volume 2A and 2B (Employer’s Requirement), Volume 3A and 3B (Conceptual Drawing) and Volume 4-Supplementary Information in English may be purchased by eligible Proposers upon the submission of a written application to the address below and upon payment of a nonrefundable fee of USD 200 or BDT 24,000. The bank transaction reference number should be explicitly mentioned. The method of payment will be electronic wire transfer or cash deposit to the Employer’s Bank account specified below. Within 3 working days of receipt of the payment in the bank account, CWASA shall issue the Hard Copy of the RFP document which the prospective Proposers are advised to collect from the address below. The soft copy of the same will also be sent through reply email. In case of discrepancy between hard and soft copy, the hard copy shall prevail. 7. A single-stage, two envelope RFP process will be used, and the Proposal will consist of (i) the Technical Part, without any reference to prices; and (ii) the Financial Part, as detailed in the RFP Document. The Technical and Financial Parts of the Proposals shall be submitted simultaneously in two separate sealed envelopes. 8. The Proposal, both the Technical Part and the Financial Part, must be delivered to the address below on or before 14.00 Hours, Local Bangladesh Time (GMT + 6 Hrs) on Tuesday, 29 September, 2026 . Electronic Procurement will not be permitted. Late Proposals will be rejected. The Technical Part of the Proposals will be publicly opened in the presence of the Proposers’ designated representatives and anyone who chooses to attend at the address below on 14.15 Hours, Local Bangladesh Time (GMT+6Hrs) on Tuesday, 29 September, 2026 . The Financial Part shall remain unopened and will be held in safe custody of the Employer until the second public opening of the Financial Part, following the evaluation of the Technical Part of the Proposals. 9. All Proposals must be accompanied by a (i) Proposal Security of USD 700,000 or BDT 85 million or equivalent in any freely convertible currency for Lot 1; USD 1,100,000 or BDT 134 million or equivalent in any freely convertible currency for Lot 2 in favour of Managing Director, Chattogram Water Supply and Sewearge Authority and (ii) Local Labour Method Statement. 10. Attention is drawn to the Procurement Regulations requiring the Borrower to disclose information on the successful Proposer’s beneficial ownership, as part of the Contract Award Notice, using the Beneficial Ownership Disclosure Form as included in the RFP document. 11. The address referred to above is: (Md. Rejaul Ahsan Chowdhury) Project Director Chattogram Water Supply Improvement Project (CWSIP) Chattogram WASA, WASA Bhaban, Dampara, Chattogram, Bangladesh. Phone: +8802333389376 Email: rejaulahsan87@gmail.com Website: www.ctg-wasa.org.bd Employer’s Bank account details: Account Name: CHATTOGRAM WATER SUPPLY IMPROVEMENT PROJECT (CWSIP) Account Number: 1310000150038 Bank Name: Mutual Trust Bank PLC Branch Name: AGRABAD BRANCH SWIFT Code: MTBLBDDHAGB Routing Number: 145150136