The Safety Marking Certification Consulting Center of Hubei Huangyu Harmony Technology Co., Ltd., affiliated with Hubei Huangyu Harmony Technology Co., Ltd., was established in October 2007 and is located at Yujing Mingmen, No. 209 Xiongchu Avenue, Hongshan District, Wuhan City, Hubei Province. It is one of the earliest professional organizations in China specializing in mining product safety marking certification and consulting (coal safety, safety standards, mining safety standards, and safety marking). The company specializes in domestic and international coal mine and metal and non-metal mine safety marking product safety certification, as well as processing and technical consulting services for explosion-proof, mining, and general mining certificates.

The Safety Marking Certification Consulting Center has handled imported mining product safety marking for products from over 10 countries, including crushers and mining reducers from Germany's Braun, and Leibo pumping stations from the UK.

The Safety Marking Certification Consulting Center's clients are located in major coal-producing provinces and mining machinery companies, including Inner Mongolia, Xinjiang, Gansu, Shanx