How to get investor for indestial goods

Hey Guys, I have a question. I'm experienced in selling commodities like coal and chemicals, and in my country, I see such a huge gap in the market for industrial coke fuel (coal). I have buyers ready, I have a supplier in China ready, but I can't get an investor. With 10 cycles, approximately 1 year, I can scale the coke business from 20k to 456k per month. There is so much demand for coal here. I have, like, everything. I have gone to the big businessmen in my city, but they were just so arrogant and wouldn't listen to my idea. Can anyone tell me how to find an investor for this? I don't even want the money; they can keep it in their account and spend directly from their account and stuff. How can I find such an investor?

Investors will care more about verified margins and contracts than the projected growth.

If you already have buyers and a supplier, prepare a simple document showing your costs, margins, contracts, payment terms, and proof of demand. That will make it much easier to approach serious investors.