: Large companies like APMEX and Elemetal act as primary suppliers for smaller shops, offering bulk silver bars and gold grain.

: Professionals use platforms like Coinet or attend major coin shows to trade inventory at "bourse floor" prices.

: Some programs require significant financial backing. For instance, becoming a PCGS Authorized Dealer requires capitalization of at least $100,000. 2. Primary Wholesale Sources

: Buying entire collections directly from the public or through estate sales often results in the lowest per-unit cost, provided you can verify authenticity. Where to Sell Coins - American Numismatic Association

: Most official wholesale channels require a state resale certificate or a business license to prove you are a legitimate retailer.

: Qualified dealers can join the Numismatic Bulk Purchase Program (NBPP) for discounts on proof and uncirculated coins. This requires a minimum annual spend of $20,000 to remain active.

: Registering as a business can allow you to purchase coins without paying sales tax, which is essential for maintaining profit margins when reselling.