正奇化工公司位于杭州灣上虞市境內，是中國唯一生產納米級(10-15nm）透明氧化鐵系列顏料的企業。現生產透鐵紅、黃、綠、棕、黑五個品種十多個牌號，年生產能力1200噸。透鐵顏料世界上只有少數發達國家能夠生產，其顏色只有黃、紅兩種。納米級透明氧化鐵顏料開發項目，被列入國家級星火計劃，浙江省新產品開發計劃，產品填補國內空白，其中納米級透鐵綠世界獨創。經過六年研究開發，生產工藝成熟，產品質量穩定，品質已達國際一流水平，完全可以替代進口，而價格大大低于同類進口產品，目前產品90%出口歐美國家。
   納米級透鐵顏料，無毒、無味，具有很好的耐溫、耐候、耐酸、耐堿以及高彩度、高著色力、高透明度和強烈的吸收紫外線等卓越性能，是傳統顏料無法比擬的。它可廣泛應用于高檔汽車涂料、木器涂料、建筑涂料、防腐涂料、粉末涂料及塑料、尼龍、橡膠、油墨等領域。
   納米材料，二十一世紀的新材料。納米級透鐵系列顏料的開發成功，將改變我國高檔顏料和高性能涂料產品長期依賴進口的狀況，特別對我國傳統涂料產品的升級換代，必將產生重大的影響。
Zhejiang Genky Chemical Co., Ltd. is a domestic special enterprise, which produces the products of NANO-GRADE transparent iron oxide pigments and dispersions. The colors of products are yellow, red, black, brown and green. The products are divided two categories, which are solvent-borne and water-borne altogether.

   The item of Trans-oxide pigments was established and put into production in 1994, and after years of research and development, the products have been of stable quality with mature manufacturing process and up to advanced international level, comparing with other similar products of other companies in the world, ours take obvious advantage of more brands, better quality and lower prices. At present, most of our products are exported to European and American countries.