Right during the contract period, due to the cooperation we have for a while, would like to invite you to help provide preferential price, look forward to your reply
The contract period is correct, because we have been cooperating for a while, I would like to ask you to help provide preferential prices, look forward to your reply
The duration of the contract is correct, because we have been cooperating for a while, I would like to ask you to help me to provide preferential prices, and I look forward to your reply<br>