1. We should always inform clients by email of the latest order status.

我们应该通过电子邮件告知客户最新的订单状态。

2. Customers require to be informed of new development of their order status.

客户要求告知订单状态的最新进展情况。

3. We are happy to establish cooperation with your company.

我们乐意与贵公司建立合作。

4. It is our sincere wish to establish trade relations with your company.

我们真诚希望与贵公司建立业务关系。

5. It is required by the contract to make an advance payment of 20% of the total as subscription.

合同规定，应支付总货款的20%作为订金。