Zhejiang RSC Knitting & Textile Co., Ltd, originally Zhejiang Zhuji Hongyun Socks Industry Co., Ltd, is located in Datang Town, the homeland of socks in China. Established in the early 1990s, it is a nongovernmental business combining producing and trade. The new factory is located at Datang Socks Industrial Zone in Zhuji, covering an area of 50 mu. It has a staff of 200, including about 20 technicians. Through ten-odd years of development, it now owns over 300 various sophisticated socks-knitting machines with a total assess over 90 million. Since it was granted with self import-export right, a series of products including "Hongda" quilted stockings and pant stockings have found markets in the countries and regions like America, Japan, Russia, Korea and Middle East, enjoying high reputation in the world as well as in over 20 domestic provinces and cities. Such favored welcome receives from both home and abroad should owe to products' strong competitiveness and potential in markets. The company has set up special stores in Yiwu and several other cities, including the "Hongda Socks Store" at Datang Light textile Socks Market in Zhejiang.

In 2000, the company was appraised as "Backbone Company in Zhuji Socks Industry"; In 2001, "Hongda" Socks was titled "zhuji Famous Product" and "Zhejiang Famous and Excellent Product"; In 2002, the registered trademark of "Hongda" was titled "Zhuji Famous Trademark". It was also appraised as "Contact-keeping and Well-credited Company", and "AAA credited company" by financial departments in three successive years. In 2003, the registered trademark of "Hongda" was appraised "Shaoxing Famous Trademark", and the company was titled "Consumer Trustworthy Unit", "Taxpaying Company" and "Lustrous Star. " It also passed international quality identifications of ISO9001 and ISO14001 in the same year. In 2005, the registered trademark of "Hongda" was appraised as "Zhejiang Famous Trademark". Persisting in the principle of excellent quality and customer first and relying on advanced producing techniques, the company has strengthened its internal management and strictly controlled the quality of its products. Humanity oriented, the company has become the first-class knitting enterprise by constantly improving its reputation and expanding its products coverage.