Shida Shinghwa Advanced Material(SH:603026) Sou Hu Cai Jing·2025-12-26 04:03Group 1 - The State Intellectual Property Office has granted a patent for a purification method of 1,2-propanediol from ester exchange to Shenghua New Energy Technology (Dongying) Co., Ltd. and Shida Shenghua New Materials Group Co., Ltd. The patent announcement number is CN116986970B, with an application date of July 2023 [1] - Shenghua New Energy Technology (Dongying) Co., Ltd. was established in 2006, located in Dongying City, primarily engaged in wholesale. The company has a registered capital of 1.25 billion RMB and has invested in 5 enterprises, participated in 72 bidding projects, and holds 301 patent records along with 79 administrative licenses [1] - Shida Shenghua New Materials Group Co., Ltd. was founded in 2002, also located in Dongying City, focusing on the manufacturing of chemical raw materials and products. The company has a registered capital of approximately 232.7 million RMB, has invested in 22 enterprises, participated in 11 bidding projects, and possesses 401 patent records along with 30 administrative licenses [1]