You are insisting that Dalian be the loading port, right?
您坚持把大连定为装运港，对吗？

No, Huangpu is fine as the loading port.
现在可以把黄埔定为装运港。

We are always willing to choose the big ports as the loading ports.
我们总希望用较大的港口作为装运港。

We'd like to designate Shanghai as the loading port because it is near the production area.
我们希望把上海定为装运港是由于它离货物产地比较近。

It makes no difference to us whether the loading port is Shantou or Zhuhai.
由汕头还是由珠海装运对我们来说都行。