Visa for me for China,will go with British National Senior Partner for business deals with companies

As for your case, you need to apply for an M type. It often takes four weekdays. You can consult the embassy whether they can offer express services. Prepare the following materials in advance: a valid passport and the photocopy of its info page, an application form and passpot-style photo, the invitation letter or confirmation letter from an duly authorized unit, the commercial activity document or invitation letter from your Chinese trade partner, the security letter issued by your company, your taxation proof or the photocoy of your company's registration certificate, and your bank statement in the latest six months. In addition, if it is the first time for you to come to China, you need to provide the orders of your roundtrip tickets and hotel reservations.

If you haven't got the above documents prepared, I suggest you to entrust a travel agency and apply for an L type, which may be faster.