中译英,信函尊敬的先生／女士：您好,我是A公司,我们一直通过B公司与您进行合作,现在,由于国家规定调整,我们希望可以直接和贵公司合作,不知道贵公司是否接纳．如果有幸可以合作,我们需要提供哪些材料?

Dear Sir/Madam,
We, company A, cooperate with you through company B. Currently, we hope cooperate with you directly due to the changes of the regulations. And please inform us which documents are necessary if we have the chance to cooperate with you.

Dear Sir / Madam :
Hello, I was Company A, B, we have been through with your cooperation, now that the state's limit, we hope to be direct and to your company, your company does not know whether to accept. If fortunate to be able cooperation, we need to provide what material?

dear Mr./miss,we are A company,and have been cooperating with you through company B.However,because of new adjusting of our country'regulation,we wish to cooperate with you directly.let us know if you...

尊敬的先生／女士：
您好，我是A公司，我们一直通过B公司与您进行合作，现在，由于国家规定调整，我们希望可以直接和贵公司合作，不知道贵公司是否接纳．如果有幸可以合作，我们需要提供哪些材料？
Dear Sir / Madam :
Hello, I was Company A, B, we have been through with your cooperation, now that the state's limit, we hope to be direct and to your company, your company does not know whether to accept. If fortunate to be able cooperation, we need to provide what material?