Thai Polycons' (BKK:TPOLY) listed unit TPC Power sold its 46% stake in Mahachai Green Power to fellow shareholder CarbonBW (Thailand) for 180 million baht in November 2025, according to a Friday Thailand Exchange filing.
Thai Polycons said TPCH initially treated the share transfer as loan collateral and did not disclose it after classifying the transaction as below the reporting threshold. The Stock Exchange of Thailand later ruled it was a disposal of assets, and the company said it has strengthened its internal procedures to improve regulatory compliance.
Proceeds were used to help repay 200 million baht of debentures due by Nov. 30, 2025, the construction and engineering firm said.