Chinese and Thai translators needed

As I'm in an existing business, I'm in need of written translations between Chinese and Thai languages. I'm looking for experienced translators who can provide accurate translations without sacrificing speed. The target audience should be kept in mind when carrying out translations. As the translation needs are primarily related to business utilization, I'd like to make sure the translations I receive are both professional and extensive. Reliability is key for me, so the translators I'm looking for must have a track record of working promptly and producing high quality translations.