PT MTI 北京（默青实业）是Provident投资集团和青山控股集团(世界五百强企业)下属公司共同出资成立的外商独资企业,旨在成为印尼经贸合作区青山工业园（IMIP）内“百万吨硫铁矿制酸项目”联通中国的纽带。MTI 北京（默青实业）将结合Provident 投资集团的雄厚资本和青山控股集团在印尼的工业园平台两大优势，以自身矿产资源为依托，广泛开展与国内格林美、力勤、德信、北矿院等公司的合作，共同搭建包括矿业技术创新、矿产品贸易、矿业设备生产制造、矿业人才培养等在内的综合体系。
PT Merdeka Tsingshan Indonesia Beijing (MTI Beijing), a wholly foreign-owned enterprise between Provident Capital Group and a subsidiary of Tsingshan Holding Group (one of the Fortune 500), aims to be the bridge for communication with China for the “Acid Iron Metal Project with Production Capacity of Million Tonnes per Annum” located in the Indonesia Morowali Industrial Park. Integrating abundant capital from Provident and platform advantage of Tsingshan in IMIP, Merdeka Tsingshan China extensively works with Chinese enterprises including GEM China, Lygend Resource Technology, PT. Dexin Steel Indonesia and BGRIMM based on its own mineral resources and aims to jointly build a comprehensive system covering mining technology innovation, mineral product trade, mining equipment production and manufacture and industry talent development.