I represent a Swiss based Exchange which is having a Banking license to accept Fiat money in return for crypto ( passed all regulations ). One of the biggest problems we envision is the ability to source BTC to buyers. (Most of our buyers are institutional investors based out of Swiss).
Would like to know how currently miners sell their BTC and what is the Incentive for them to come onboard our exchange/OTC place like ours.
I know one small exchanger owned by bank which has contract with bitfury and exchange coins this way but also as far as I know you can be like a middleman and offer service to local customers through big exchangers. Big miners have contracts with others, some local companies offer special rate for those who have much btc. Small miners always use well known exchangers: binance, coinbase, xapo and etc.