升职感谢信（英文版）-条据书信 【一】 respected xx of xx greetings, i am writing this letter to thank you for your kind understanding of our moderate adjustments to our pricing policies. as you may have already known, the cost of the raw materials necessary to our production has moved up greatly in the last few years, and considering the fact that it is to the interests of both of our companies that we maintain a cooperation relationship, we have been by far trying to supprethe rise of product pr
