The blackwater ransomware group listed www.ptesm.com on its data leak site on 2026-08-24. Country: PT Domains named: www.ptesm.com Claim as published on the leak site: Sinarmas Cepsa Pte. Ltd. is a joint venture between Cepsa and Sinar Mas Group, specializing in the production and marketing of oleochemicals, particularly fatty alcohols and their derivatives