Not true at all. Costco uses the industry-standard Net 60 for supplier payment.
Companies have to be fairly large to be Costco suppliers. What suppliers lose in margin they more than make up for in scale. It's better to sell 10 million at 5% margin than 1 million at 10% margin.
And they don't require a % of supplier's business revenue as that would be illegal in the U.S. Most of the products found at Costco are generally found at other retailers, just in smaller packages or as different SKUs.
Companies have to be fairly large to be Costco suppliers. What suppliers lose in margin they more than make up for in scale. It's better to sell 10 million at 5% margin than 1 million at 10% margin.
And they don't require a % of supplier's business revenue as that would be illegal in the U.S. Most of the products found at Costco are generally found at other retailers, just in smaller packages or as different SKUs.