【求助】有偿求助

帮我翻译一下什么意思?
最快最全的奖励100BB~~哦也


I certify that, to the best of our konwledge,the above-named entity is exempt from U.S. tax under the U.S. internal revenue code, and is a resident of the united states of America for purposes of U.S. taxation.

想幫!但是........My english is very pool...