Thanks for sharing the Product Feed specifications. We already have a CSV feed setup that has all the fields you require and some additional fields such as availability information, discounted price, color and three-level categorization of the products. I'm sharing a sample of 500 products for Thailand, please have a look and let me know if you need clarification on any of the fields in the feed.
Also, can you please tell me a preferred way of sharing the feed with you and the time-of-day & frequency of it.