Question concerning 65 age limit for a work visa

I have a request from my former company(I retired from this company) to become a Pre-commissioning manager for a new facility that is currently being constructed in China. I have 35 years experience in my field and was a regional specialist with this company. The management position I have been requested to undertaken will probably take 1 year to completed and bring the facility on line. My problem is that I am now 66 years old (Brithday in Sept) and with China having the 65 year old age limit for work Z I am not sure how if myself and/or the company can request an exception to allow me to get my work Z and work permit.

So I have two questions related to the above age limit issue:

1. Is there any type of exceptions granted by the Chinese immigration department to allow personnel who are over the 65 year age limit, but with specialized skills to obtain a work Z for at least a 1 year time period?

2. If the above isn't possible, since I currently have a consulting company in Thailand that does a lot of consulting work for that company would it possible for the consulting company to apply for a work Z allowing me to go in and out as a consultant (probably work there 4 weeks then off 4 to six weeks)?