July 5-8, we participated in The International Conference on Boron Chemistry 2017 held by the Henan Normal University.
The 1st shareholders’ meeting of Zhengzhou Sigma in 2017 is held on the morning of Apr.23, 2017. The meeting was host by Mr. Wu Xiaojun, chairman of the company.
Sept.12, according to the file of Zhengzhou Science and Technology Habor, the project of Zhengzhou Engineering Technology Research Centre applied by Zhengzhou Sigma is approved with the procedure of approving materials and experts on site assessment.
On Apr.24, 2016, the 1st shareholders’ meeting is held successfully at meeting room in Zhengzhou headquarters. The meeting is conducted by CEO Mr. Wu Xiaojun.
Recently informed by department of henan province, our company won the "little giant of science and technology cultivate enterprise in henan province" in 2016.
According to the research in Patent (WO/2008/121028,WO/2008/121029) of Sukov, Kirill Gennadievich, Russian scientists, 9-oxoacridine-10-acetic(9-oxo-10(9H)-acridineacetic acid), and its salts and its esters can affect the hormone in the human body by the hormone therapy...
2, 2 '- pyridine and its derivatives are a kind of important chemical and drug intermediates, has a unique chelation...