Certificates issued to Jinan Longchao Petroleum Machinery Co., Ltd. Current certificates are shown first; expired certificates are retained only as historical records.
ISO 9001:2015
Quality Management System
Valid to May 1, 2028
ISO 14001:2015
Environmental Management System
Valid to April 27, 2028
ISO 45001:2018
Occupational Health & Safety Management System
Valid to April 27, 2028
Historical API certificates (expired October 2025)
