Thai Cold Rolled Steel Sheet Public Company Limited (TCRSS) with other seven steel producers: Sahaviriya Steel Industries Public Company Limited (SSI), NS BlueScope (Thailand) Limited (NS BlueScope), NS-Siam United Steel Company Limited (NS-SUS), JFE Steel Galvanizing (Thailand) Company Limited (JSGT), G Steel Public Company Limited (G Steel), G J Steel Public Company Limited (GJS) and POSCO Coated Steel (Thailand) Co., Ltd. (POSCO-TCS)  jointly organized the Konlhek Mini Marathon 2025 (the 17th)  on Sunday 5 October 2025 at Vachirabenjatas Park (Rot Fai Park), Bangkok.

This year’s event successfully raised a total of 3,561,000 Baht in donations — the highest amount ever recorded since the event’s inception. The proceeds will be contributed to charitable organizations that support underprivileged individuals. The event received strong participation and sponsorship from over 151 business partners and attracted more than 1,700 runners, including employees, families, partners, customers, and the general public.