In 2003, Sumitomo Riko Group invested in the development zone to establish Donghai Rubber & Plastics (Jiaxing) Co., Ltd. For more than a decade, Sumitomo Riko Group has established Donghai Rubber & Plastics Technology Center (China) Co., Ltd. and Donghai Rubber & Plastics Enterprise Management (Zhejiang) Co., Ltd. In 2016, Donghai Rubber & Plastics (Jiaxing) Co., Ltd. has an output value of 1.09 billion yuan and more than 1,200 employees. The business has expanded from manufacturing to R&D, management and marketing.