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Ningxia Shengda Chemical Technology Co., Ltd. is a subsidiary of natural gas odorant authorized by Changhong Chemical (Global). The chemical industry reached a consensus through Ye Xilai, the patentee of tetrahydrothiophene invention of Changhong Chemical Technology, to produce 25,000 tons of natural gas odorant every year. Shengda Chemical's main business is Northwest Natural Gas Company. At present, our natural gas odorant is high in purity, leading the industry Industry products do not have side effects on the pipelines and air cushions of natural gas companies. Please rest assured that our chemical workers promise to each gas company. The company has passed ISO9001 quality system certification, environmental system certification and occupational health management system certification, and the product quality and purity have reached 99. % or more, and has passed the Shanghai General Standard International System (SGS) quality certification, and its product quality and parameters meet and exceed the "GB/T19206-2020" standard requirements.

The company adheres to the enterprise spirit of "based on integrity, innovation and far-reaching", and is committed to the development of my country's gas industry with high-quality products and low prices.