Tianrui Group Casting Co., Ltd. is one of the largest casting enterprises in China that produces alloy steel castings. It integrates steel casting, copper casting, aluminum casting, and mechanical processing. It is a designated production plant for railway products by the Ministry of Railways, with an annual output of 100000 tons of V-method molding production line and an annual output of 300000 pieces of cast steel wheels production line with independent intellectual property rights and international leading level. The production capacity of cast steel parts reaches 200000 tons per year, with fixed assets of 836 million yuan, 5200 employees, and a building area of 31000 square meters. The main products include railway diesel locomotive motor shells, railway freight car rocking pillows, side frames, couplers, hook tail frames, railway bridge support cast steel parts, wind power accessories, cast copper art products, engineering machinery parts, mining machinery parts. Mechanical processing, etc. In 2007, Tianrui Group Casting Co., Ltd. produced 160000 tons of castings and generated sales revenue of approximately 1.5 billion yuan. In 2008, Tianrui Group Casting Co., Ltd. produced 80000 tons of castings, with sales revenue of 1.007 billion yuan and profits and taxes of 247 million yuan.

Tianrui Group Foundry Co., Ltd. is a subsidiary of Tianrui Group Foundry Co., Ltd. It is located in Linru Town, Ruzhou City, Henan Province, at the border of Ruzhou and Luoyang. It is adjacent to Linru Town Station on the Jiaozhi Railway and Da'an and Wenquan exits on the Nanjing Luoyang Expressway, with convenient transportation. A domestically advanced electric furnace+refining furnace+V-method molding production line with an annual production capacity of 50000 tons of cast steel parts. It mainly produces vehicle parts such as rocking pillows, side frames, hook bodies, hook tongues, and hook tail frames for locomotives and vehicles, as well as civil cast steel parts such as bridge shells, mining machinery parts, and alloy steel ingots. The company currently has fixed assets of 83 million yuan, 1500 employees, a building area of 15600 square meters, and a casting output accounting for 46.57% of the total company output. In 2007, 68000 tons of cast steel parts were produced, with sales revenue of 560 million yuan and profits and taxes of 128 million yuan

Tianrui Group Foundry Co., Ltd. Second Branch is a subsidiary of Tianrui Group Foundry Co., Ltd. It is located in Runan Industrial Zone, Ruzhou City, Henan Province, at the exit of Ruzhou Expressway, with convenient transportation. The German HWS company's V-method molding production line and wheel casting line, which have advanced domestic levels, have an annual production capacity of 150000 tons of cast steel parts. They mainly produce vehicle parts such as rocking pillows, side frames, and wheels for locomotives and vehicles.