Stonelf International Resources Limited (Hong Kong) and Topwayer Enterprise Corp. (Philippines) Stonelf International Resources Co.,Ltd. [hereinafter referred to as "Stonelf(Hong Kong)"] originated from Shanghai Youhe Industrial Co., Ltd., is a company focus on providing solutions for developing countries in electric, constructional, agricultural field. Topwayer Enterprise Corporation is set up for product and project in Philippines. Stonelf is certified integrated management system of ISO9001 quality management system. Since the Enterprise Reformation from 2009, Shanghai Youhe has been focusing on domestic engineering field by the establishment of the improved corporate governance structure and high-efficiency management mechanism, and the development of core competitiveness in the construction material area and project bidding. Over the years, Shanghai Youhe has witnessed the booming of China construction business and leaves its footsteps at 5 provinces in China. While maintaining close cooperation with Shanghai Youhe, Stonle hope to share our success and expertise to developing countries such as Philippines, take part in the public and private section business.