Check grammar of document which has been translated from English to Chinese

I have content which has already been translated from English to Japanese. I need a Chinese/English translator to read through the Chinese version and ensure the grammar is good enough and that it reads ok. Corrections should be made where necessary. I have both the English and Chinese content in word documents. The total word count of the English content is around 20,000 words and it is broken up over several documents. It relates to website content for a binary options trading platform, so there is some basic financial terminology, terms & conditions as well as other usual website content. One part is attached as an example (both English and Chinese version attached). THIS IS A SIMPLE JOB AS IT IS ALREADY TRANSLATED, JUST NEED IT TO BE CHECKED BY A TRANSLATOR WHO READS BOTH ENGLISH AND CHINESE.