Just because a chinese tells you that gold is worth $ 0.5 a K, doesn't mean the gold is worth $0.5.
He buys is, resells it to a bigger chinese, this bigger chinese sells it to gold delivery companies - which actually sell for around 3.60 EUR aka > $4.50.
So if YOU are that stupid selling for $0.50, just do it, no one will stop you.
Last time i sold bulk - it was 1.446 mil. gold traded over 20 accounts within 3.5 hours worth $ 2 980.
I also run my own shop, where 1 k is 2.99 EUR.
As i always tell:
Everyone can produce, the problem starts with the selling. You need to invest plenty of time to get private buyers or good companies you can supply.
As example - RR, the biggest german seller - suppliers get here atm $ 1.3 to $ 3.1 per 1k.