Significant Changes and Development
TTW Public Company Limited
TTW Public Company Limited was incorporated as a limited company on 11 Septembertember, 2000 under the name
“Thai Tap Water Company Limited”
to operate the project for producing and distributing water supply in the vicinity of West Bangkok, details of the Company’s significant changes and development can be sumMarchized as follows:
TTW received a certificate of honor "Low Emissions Support Scheme" (LESS), which certifies that "a Solar Rooftop on a storage tank (tap water)" can efficiently reduce Greenhouse Gass Emissions by 2,263.422 tonCO2eq/year.
TTW received a "Carbon Footprint for Organization (CFO) certification 2025" from the Thailand Greenhouse Gas Management Organization (Public Organization) for three consecutive years.
TTW was selected for the "Dividend Universe 2025" list by SET Research
TTW has received the "Low Emissions Support Scheme" (LESS) certificate from Thailand Greenhouse Gas Management Organization (Public Organization), which certifies its tree planting activities aimed at saving the planet and reducing global warming, with an estimated greenhouse gas storage volume of 30.391 tonCO2e.
TTW Received an awards plaque for the "Ting To Trash" project from The Securities and Exchange Commission and Thai Listed Companies Association as a listed company with knowledge and understanding of the correct waste segregation method and creating an organizational culture that initiates greenhouse gas reduction, as well as disclosing information on waste segregation and the amount of waste that TTW has processed. (Verification period: October 2023 - September 2024)
TTW is one of 74 listed companies that received the "ASEAN Asset Class PLCs Award" as part of the 2024 ASEAN CG Scorecard Project. This project is hosted by the Securities and Exchange Commission (SEC) and the Thai Institute of Directors Association, in collaboration with capital Marchket organizations from 6 ASEAN countries. The initiative aims to enhance the quality of supervision for business operations among listed companies in ASEAN, ensuring they meet international standards.
TTW received a full score of 100 from the Annual General Meeting Assessment 2025 (AGM Checklist) by the Thai Investors Association (TIA).
TTW acquired 10% of LPCL’s ordinary shares from a total registered capital of 41,868 million baht. LPCL is engaged in the Hydroelectric power generation and sales business, located in Luang Prabang, Lao PDR.
TTW was evaluated on the “Corporate Governance Report of Thai Listed Companies 2025” as “Excellent” by the Thai Institute of Directors (IOD) for 7 consecutive years.
TTW has received the "Sustainability Disclosure Award 2025" from the Thaipat Institute for seven consecutive years. This award recognizes TTW's excellent public disclosure of company performance and its coverage of Environmental, Social, and Governance (ESG) criteria.
TRIS Rating has affirmed the company rating on TTW Public Company Limited (TTW) and the ratings on its outstanding senior unsecured debentures at “AA-” with a “stable” outlook.
TTW received two award plaques at the SET Awards 2025 event: the "Best Company Performance Award" and the "Outstanding Company Performance Award". These awards were presented in the "Company Performance Awards" category for companies with a market capitalization of 30,000 to 100,000 million baht.
TTW received a certificate of honor as a "Climate Action Leading Organization", reflecting its commitment to reducing carbon emissions. Additionally, it supports operational goals in line with Thailand's target of achieving Net-Zero greenhouse gas emissions.
TTW received the highest "AAA" rating in the "SET ESG Ratings 2025" from the Stock Exchange of Thailand.
TTW received a “Carbon Footprint for Organization (CFO) certification”, calculated from the amount of greenhouse gases emitted from various activities of the company in the year 2023 amounted to 77,555 tons of carbon dioxide equivalent.
TTW has signed a contract amendment to the Water Purchase and Sales Agreement No. ฝกม. 32/2567 with the Provincial Waterworks Authority (PWA).
- The water tariff rate of the quantity of tap water purchased above MOQ (354,000 m3) from 13.03 Bt./m3 to 10.50 Bt./m3. (effective date: Junee 1, 2024 - Decemberember 31, 2024)
- Utilizing the Krathumbaen water treatment plant, with a capacity of 100,000 m3/day, to produce tap water in conJunection with the Banglen water treatment plant to support in the event of problems/emergencies/maintenance of production systems.
- Improving the Khlongyong boosting station (BP1) and Krathumbaen boosting station (BP2) to the Water distribution stations and installing water meters.
TTW was selected for the “SETESG Index” for 2H’2024.
TTW received 100 scores (Full score) from the Annual General Meeting Assessment 2024 (or AGM Checklist) by the Thai Investors Association (TIA).
TTW has been certified as a leading greenhouse gas management organization (CALO) by the Carbon Neutral Network Thailand Board of Directors at the Carbon Neutral Network Thailand Board of Directors Meeting.
TTW was evaluated on the “Corporate Governance Report of Thai Listed Companies 2024” as “Excellent” by the Thai Institute of Directors (IOD) for 6 consecutive years.
TTW received an award plaque for a listed company with "Outstanding Performance Business" in the "Excellence Award group" with a Marchket capitalization of 30,000 - 100,000 million baht at the SET Awards 2024 event.
TTW received the "Sustainability Disclosure Award 2024" from the Thaipat Institute for 6 consecutive years. The award recognizes TTW's excellent public disclosure of company performances and coverage of its Environmental, Social, and Governance (ESG) criteria.
TRIS Rating affirms the company rating on TTW Public Company Limited (TTW) and the ratings on its outstanding senior unsecured debentures at “AA-” with a “stable” outlook.
TTW was rated "AA" on the "SET ESG Ratings 2024" by the Stock Exchange of Thailand.
TTW was selected into the “SETESG Index” for 1H’2025, published on Decemberember 18, 2024.
TTW has received the announcement results of the Carbon footprint of the Organization for the year 2022 from Thailand Greenhouse Gas Management Organization for assessing greenhouse gas emissions in the water treatment process. This assessment covers Greenhouse Gas (GHG) emissions in 3 Scope, consisting of Scope 1 (direct GHG emissions), Scope 2 (indirect GHG emissions from energy use), and Scope 3 (indirect GHG emissions from other energy use).
TTW redeemed 1,000 MB debentures (No.1/2018) using an internal cash balance.
TTW received a Carbon Footprint for Organization (CFO) certification, calculated from the amount of greenhouse gases emitted from various activities, which covered both direct greenhouse gas emissions (Scope1) and indirect greenhouse gas emissions from energy use (Scope2) of the company in the year 2022 amounted to 69,429 tons of carbon dioxide equivalent.
TTW was selected into the “SETTHSI Index” for calculating the index during July 1 - December 31, 2023. (Published on June 16, 2023)
TTW received 100 scores (Full score) on "AGM Checklist 2023" by the Thai Investors Association (TIA).
Pathum Thani Water Co., Ltd. (TTW's subsidiary) has signed the Private Partnership Contract on the Operations of Water Treatment and Maintenance to Solve the Water Shortage Problem in the area under PWA’s Pathum Thani Branch, Rangsit Branch (S), and Klongluang Branch. To operate the water treatment and maintenance of the system, including Pathum Thani Water Treatment Plant with the 358,000 m3/day Minimum offtake Quantity (MOQ), 6.50 Baht/m3 (Excluding VAT) water treatment fee, and adjusted according to the CPI on the first day of January uary each year. The first adjustment will be on January uary 1, 2025, with a 10-year contract period.
The end of the contract Granted the Right to Produce and Distribute tap water for a period of 25 years and the contract to Purchase Additional tap water from the Pathum Thani Water Co., Ltd. (TTW's subsidiary), which provides tap water for the Provincial Waterworks Authority in Pathum Thani-Rangsit areas.
TTW was evaluated on the “Corporate Governance Report of Thai Listed Companies 2023” as “Excellent” by the Thai Institute of Directors (IOD) for five consecutive years.
TTW was rated "AA" on the "SET ESG Ratings 2023" by the Stock Exchange of Thailand.
TTW received an award plaque for a listed company with "Outstanding Performance Business" in the "Excellence Award group" with a Marchket capitalization of 30,000 - 100,000 million baht at the SET Awards 2023 event.
TRIS Rating affirms the company rating on TTW Public Company Limited (TTW) and the ratings on its outstanding senior unsecured debentures at “AA-” with a “stable” outlook.
TTW was selected into the “SETESG Index” for 1H’2024, published on December 18, 2023.
TTW received the "Sustainability Disclosure Award 2023" from the Thaipat Institute for 5 consecutive years. The award recognizes TTW's excellent public disclosure of company performances and coverage of its Environmental, Social, and Governance (ESG).
TTW redeemed 2,000 MB debentures (No.1/2012 Series 2) using an internal cash balance and a long-term loan of 1,000 MB.
TTW has obtained long-term loans of 1,000 MB from the financial institution to redeem the debenture of 2,000 MB. (Maturity Date: February 22, 2022)
TTW was selected into the "SETTHSI Index" for 2H'2022. (Published on Junee 20, 2022)
TTW received 100 scores (Full score) on "AGM Checklist 2022" by the Thai Investors Association (TIA).
TTW was selected as 1 of 170 listed companies engaging in the "Thailand Sustainability Investment 2022" (THSI) by The Stock Exchange of Thailand. (For 7 consecutive years)
TTW was classified CG scoring on the Corporate Governance Report of Thai Listed Companies 2022 (CGR 2022) as "Excellent" by the Thai Institute of Directors Association.
TRIS Rating affirms the company rating on TTW Public Company Limited (TTW) and the ratings on its outstanding senior unsecured debentures at “AA-” with a “stable” outlook.
TTW is among 76 listed companies that received the “ASEAN Asset Class PLCs Award” from the 2021 ASEAN CG Scorecard Project. The project is hosted by the Securities and Exchange Commission (SEC) and Thai IOD in collaboration with capital Marchket organizations in 6 ASEAN countries to help raise the quality of supervision of business operations of listed companies in ASEAN to meet international standards.
TTW was selected as 1 of 18 listed companies in the “FTSE SET Shariah Index” effective date on Decemberember 19, 2022, until the next review.
TTW was selected into the “SETTHSI Index” for 1H’2023 by the Stock Exchange of Thailand (SET).
TTW received the “Sustainability Disclosure Award 2022” from Thaipat Institute for 4 consecutive years, in recognition of its excellent public disclosure of company performances and coverage of its Environmental, Social and Governance (ESG).
The Stock Exchange of Thailand has removed TTW from SET50 Index and transferred it to respective reserve lists, effective February 17, 2021
The Board of Directors has approved TTW to execute an agreement for the engagement of CH.Karnchang Public Company Limited (“CK”) for Improvement of Water Treatment and Transmission Distribution Systems of Banglen Water Treatment Plant Project, which is a connected transaction with the value under this engagement contract of 330.87 million Baht, exclusive of value added tax, for a total period of 540 days.
The Stock Exchange of Thailand has removed TTW from SET50 Index, SET100 Index, and SETHD Index but still has been selecting into "SETTHSI Index" for the second half of 2021. For Calculating the index during Julyy 1, 2021 - Decemberember 31, 2021 (Published on Junee 16, 2021)
TTW accepted the construction works of The Improvement for Water Supply and Distribution Systems at Pathumthani Water Treatment Plant Project from Ch.Karnchang PLC.
TTW was selected as 1 of 146 listed companies engaging in the "Thailand Sustainability Investment 2021" (THSI) by The Stock Exchange of Thailand. (For 6 consecutive years)
TTW refinanced a long-term loan of 2,760 million baht from Thanachart Bank to Krung Thai Bank, repayment period not exceeding 6 years 7 months, 25 installments.
The Board of Directors has approved the change of sub-committee structure from 5 to 4 to make the work of each sub-committee much more compact by combining the Corporate Governance Committee and the Risk Management Committee to the Risk Management and Corporate Governance Committee.
The Company redeemed the debenture of Thai Tap Water Company Limited No.1/2012 (TTW192A) valued at 1,500 million baht.
Ch.Karnchang PLC has exercised the warrants to purchase ordinary shares (CKP-W1) and shareholding in CKP increased to 32.56 percent, resulting in TTW’s shareholding in CKP Decemberreased to 23.43 percent (Dilute Effect).
TTW issued a bill of exchange (B/E) 1,000 million baht of unsecured senior debentures, with no trustees, as an investment to converting warrants into ordinary shares of CKP by private placement offering with a 1.73 percent discounted rate of return, maturity date on Decemberember 24, 2019.
TTW exercised “CKP-W1” for 165,000,000 units, convertible to CKP shares totaling 165,115,500 at 6.00 Baht per share. The total amount is 990,693,000 Baht. Consequently, TTW increased its CKP shareholding to 24.98%.
CKP received the additional shares from the exercise of the warrants to purchase ordinary shares (CKP-W1) amount of 165,115,000 shares that trade on Octoberober 4, 2019, resulting TTW’s stake in CKP 24.98 percent.
TTW issued and offered for sale debentures with a maturity of 7 years 2 months, in the total amount of 1,000 million baht, at the fixed interest rate of 2.41 percent per annum, proceeded of which would be used for repayment of the matured existing debentures.
TTW accepted the construction works from Ch.Karnchang PLC, including; Krathumbaen Water Treatment Plant, Rai Khing Raw Water Pumping Station, Pipe laying of raw water, and the reNovemberation work of a booster station to a water distribution station, including the construction work under the conditions of the government agency license.
TTW purchased 467.50 million shares in CKP according to the rights and the premium of 23,144,123 shares at a par value of 3 Baht per share, totaling 1,471.90 million baht, resulting in the company had a 25.31 percent stake in CKP.
The 2014 Annual General Meeting of Shareholders approved the Company changed its name to "TTW Public Company Limited".
TTW paid CKP’s capital increased (from 100 million shares to 9,200 million shares) in proportion to the shareholder’s equity of 2,730 million baht, totaling 276 million shares or equaled to 30 percent.
TTW purchased ordinary shares of CK Power Company Limited (CKP).
Waterflow Company Limited merged with BJT Water Company Limited to establish Thai Water Operations Company Limited, staked by TTW 68 percent and PTW 32 percent.
TTW has signed an agreement to acquire the right to produce tap water and wastewater treatment in Bang Pa-in Industrial Estate from Bang Pa-in Land Development Company Limited (BLDC) for a period of 30 years (ended on Augustust 6, 2039).
The Company was converted into a listed company on the Stock Exchange of Thailand (SET) with the registered capital of 3,990,000,000 Baht, comprising 3,990,000,000 ordinary shares at the par value of 1 Baht per share, TTW has been classified into Energy and Utilities Business in Resource Sectors.
The Company entered into an agreement to purchase ordinary shares of Pathum Thani Water Company Limited (PTW) amount of 10,698,283 shares or 89.15 percent of total paid-up shares.
The Company entered into an agreement to purchase an additional shares of Pathum Thani Water Company Limited amount of 1,061,452 shares or 8.85 percent of total paid-up shares (as of Decemberember 31, 2007, the company has had a total shareholding in PTW of 98 percent, 2 percent is owned by the Provincial Waterworks Authority).
The Company has registered as a public company by the name of "Thai Tap Water Company Limited".
TTW was granted a concession to engage in tap water production business from the Ministry of Natural Resources and Environment for 25 years to produce and distribute tap water for the areas of Nakhon Pathom Province in three districts, i.e., Amphoe Nakhon Chai Si, Amphoe Sam Phran, and Amphoe Phutthamonthon, and Samut Sakhon Province in two districts, i.e., Amphoe Krathum Baen and Amphoe Mueang Samut Sakhon.
Produced tap water for distribution to the Provincial Waterworks Authority before the start of operation.
Started selling tap water according to the terms of the water purchase agreement with the Provincial Waterworks Authority.
The Company has signed a water purchase agreement with the Provincial Waterworks Authority (PWA) on a Build-Own-Operate (BOO) for a period of 30 years.
