Chinese language
Chinese interpretation and translation at IdeaTranslate
Chinese is the most widely-spoken language in the world, and not only in China: the Chinese have dispersed into many other countries. (There are over 500,000 Chinese people in Russia, and over a million in the US and Canada).
Chinese translations are often required for product imports: clothing and footwear imports require Chinese certificates of compliance and general documentation, machinery needs translations of user and instruction manuals, and household goods come with basic product information, ingredients, method of use, safety instructions.
Note that Chinese has many dialects and we've often had to work with particular Chinese dialects. However, internationally, Mandarin is the most widely used language. It is now the official language of China, which has contributed to the standardization of communication, both within China and in its relationships with other countries. We find that 95% of all Chinese translation requests involve Mandarin.