■ 1972 designed, manufactured and installed the first electrostatic precipitator, which became one of the earliest enterprises engaged in dust removal equipment manufacturing in China and the first enterprise in China building materials industry to manufacture environmental protection dust removal equipment.
■ 1983, Pingdingshan Electric Dust Collector Factory, a construction company of the National Building Materials Industry Bureau, was established, designed and produced the first flameproof electric dust collector in China, and won the National Science and Technology Progress Award.
■ 1984 introduced the design, manufacture and installation technology of the electric dust collector of Lurgi Company of Germany, becoming the first enterprise to introduce the international advanced electric dust collector technology.
■ 1988 introduced the internationally advanced design, manufacture and installation technology of the bag filter of FULLER Company in the United States, and became the first domestic enterprise with internationally advanced bag filter technology.
■ 1994 The back-blowing bag filter designed and produced by the enterprise for the new dry cement production line won the National Science and Technology Progress Award.
■ 1997 introduced the design, manufacture and installation technology of BS930 electrostatic precipitator of Lurgi company in Germany, which made the company's dust removal technology level synchronized with the international level and continued to maintain the domestic leading level.
■ In 2002, the enterprise independently designed and produced the bag filter for coal-fired boilers and put it into operation, becoming the first bag filter successfully applied to coal-fired boilers in China.
■ In 2003, China Material Industry Science and Industry Group cooperated with Katie Power strategically, and the enterprise was transformed into Henan Sinoma Environmental Protection Co., Ltd., becoming the first large-scale scientific and technological environmental protection enterprise with cement industry and power industry background in China.
■ In 2004, the electrostatic precipitator, bag filter and humidifying tower independently designed by the company were rated as the largest electrostatic precipitator, bag filter and humidifying tower in China building materials industry by china enterprise confederation; The company's sales revenue, total supporting amount and other economic indicators were rated as new records of enterprises in China by china enterprise confederation.
■ In 2005, the company independently developed, designed and manufactured a Saudi 5000t/d large bag filter, which made the company a leading environmental protection dust collector in China.