Taiwan's well-known pen-making brand, with decades of exquisite pen-making technology to design and produce a series of exquisite pen models, and continue to expand the peripheral products of writing products

Sanwentang TWSBI is a Taiwanese wholly-owned enterprise, which was established in 2009 by Taixing Precision to create another brand TWSBI and establish Sanwentang Pen Co., Ltd. 50 or 60 years ago, Taixing's production content was mainly punch parts, lathe parts and plastic injection, and 30 years ago, it began to help international well-known brands to do OEM OEM, mainly producing toy building blocks and various writing supplies; 20 years ago, we began to cooperate with Japanese manufacturers ODM to produce mechanical pencils, and there are more and more pen products. After more than 30 years of experience in OEM for international brands, TASHIN decided to start its own brand, and Sanbundo TWSBI came into being.

With high quality, high added value and perfect after-sales service, Sanwentang TWSBI has gradually established its brand. The first generation of the Diamond 530 fountain pen won the Red Dot Design Award in Germany in 2010.