Sinoma-Liyang Heavy Machinery Co., Ltd. Enterprise Quality Credit Report Sinoma-Liyang Heavy Machinery Co., Ltd. is a high-tech enterprise in Jiangsu Province and a well-known enterprise in Jiangsu Province. Its tax credit rating in 2024 is A, and in 2023, its quality credit rating was A, with a projected quality credit rating of AA in 2025. The company has passed the quality management system certification (ISO9001), environmental management system certification, and occupational health and safety management system certification. Currently, the crushers and plate feeders produced by the company are high-tech products in Jiangsu Province.