I am the CEO of a US based company and I have a team in China/India who has a vast network of suppliers that will allow you to source from China. My team will negotiate, verify, and provide other services with the supplier, and we also provide logistics and customs clearance services.
While my team in China/India is researching, negotiating, verifying, etc with suppliers in China/India, I am in the US with constant communication with them and this allows me to provide you frequent updates, in your time zone. This is a service you will not get while working with suppliers directly.
We specialize in chemicals, raw materials, metals, ag, and many more categories, and have experience sourcing the materials you mentioned, from China.
I know this proposal is for a set budget, but something else I can offer you is the guarantee that I will not charge you any money while researching and obtaining price quotes from suppliers, if you end up doing business with one of my team's recommended suppliers. Great scenario; you get the best prices from a team who is negotiating with the suppliers in mandarin and chinese, the ability to ship the products without worrying about it once, and the ability to not have to pay for any of the services (if you do business with my supplier).
Please let me know your feedback with a message.
Thank you,
Kory
China Sourcing Specialists