Our history

SIDA’s story is one of purposeful convergence. For nearly three decades, four distinct industry leaders—Guangxin, Fengbao, Wanye, and Leadwin—built deep, specialized expertise in parallel. Guangxin mastered insulating paper and board production since 1995, growing to 45,000 tons of annual pressboard capacity. Fengbao pioneered composite materials from 2003, developing critical products like DMD, NMN, and NHN. Wanye added precision lamination and deep processing capabilities from 2005, while Leadwin simultaneously built an unparalleled global trade network and deep regulatory knowledge.

In 2022, these four forces strategically united to create something far greater than a merger: a unified, one-stop solution provider engineered to solve the power industry’s most complex challenges. This convergence leverages decades of collective R&D, manufacturing muscle, and market intelligence into a seamless supply chain synergy. We honor our individual legacies while collectively building the future of electrical insulation—delivering reliability, innovation, and global reach that no single entity could achieve alone.