grammer改錯處,好心人幫下手!

The local investment atmosphere is improving recently and/since many foreign companies are setting up their offices here. The demand for your products is believed to ... (considerable is not the right word to use here) if they are up to standard and prices are well competitive.

We are looking forward to hearing from you soon (if you are awaiting a definite reply from the recipient), yet if this is only a request or an invitation (that the recipient does not necessarily have to reply you with news, not just a word of gratitude) then you should use 'we look forward to hearing from you soon.

Below is a version that I would write for myself in your context.

With the increasing number of oversea businesses settling on land, the local investment atmosphere has gradually turned its course to optimism. As a result, it is believed that demand for your products will rise if supplies are of good standard at a reaonsable price.

(It is quite odd to just end the letter with 'we are looking forward to hearing from you soon', so you should add some more here to finish your letter properly, such as 'please do not hesitate to raise any questions to us should you have any.')

We are looking forward to hearing from you soon/ we look forward to hearing from you soon.

Hope it helps.

The local investment atmosphere is improving recently and many foreign companies (is) (are) setting up offices here. The demand of your products (believe to be considerable) (is likely to be high) if they are up to standard and (if) prices are competitive enough.

We look forward to hearing from you soon.

The local investment atmosphere is improving recently and many foreign companies are setting up offices here. The demand of your products that believes to be considerable if they are up to standard and prices are competitive enough.

We look forward to hearing from you soon.

基本上你d gr ok~!