贝贝781213
Dear Sir,Due to the raw material cost of XX company increasing, we have to increase the price of below models for 5% base on the original price from now on：Model ABCDEModel EFGHIThis is a tough decision and we understand this will bring you inconvenience, but 5% is our best effort to keep balance between our customers and covering our cost.We greatly regret any inconvenience it may cause, and hope we can receive strong support from your side.Thank you very much. I'm available for any questions you may have.Best regardsXXXXXX以上是比较谦虚的版本，如果厂方没有这么弱势，可以写的强硬些。
机智小百合
It has been about 40 days from our first quotation,you know,the exchange rate is changing these period, and our price maybe have some adjust, we hope you could give us your order forecast ASAP so that we could prepair in advance, and ensure prompt delivery .或者During this period,the exchange rate between RMB and USD keep changing ,and much than the rate between EUR and USD.Additionally,the price rise in domestic is so much that price of raw material is higher.这两个是根据不同情况回复的.你可以根据实际情况改改,说说出口方的难处.客人也是人,他着急要货的话,肯定会体谅的.祝你接单顺利.
