YENPEN White Board & Accessories POLAR-BEAR Board Marker & Stationery Customers Designs and Specification are Welcomed Company Profile / Product Description Since YenPen Stationery Co., Ltd. was established in 1980. It is currently one of the largest manufacturer of whiteboard, accessory items and stationery. We named it Polar-Bear. We are specialized in whiteboard & accessories (stationery) ...