((3) Diversify raw material sources and enter into long-term agreements with multiple suppliers in different countries (4) Fulfi ll the agreements honestly and faithfully to maintain mutual trust and strengthen our relationships with suppliers (5) Develop new sources to improve our competitiveness (6) Select good raw materials as the target of investment and make the investment if it is feasible to control raw material sources on a long-term basis (1) Ensure a continuous supply of raw materials as the core of the transportation control.