CH. Karnchang Public Company Limited notified the Stock Exchange of Thailand that the company has signed the Construction Contract for the Construction of Water Transmission Tunnels along Kanchanaphisek Road and Old Railway Road from Bangmod Pumping Station to Samrong Pumping Station with related works for the 9th Bangkok Water Supply Improvement Project with the Metropolitan Waterworks Authority, per the details of works as follows: Signing Date: May 24, 2021, Total Contract Value: THB 4,949,800,000 (VAT included), Construction period: Approximately 1,200 days.