A Thai Honda MX 125 Grom retails for about $1,800.00 in Thailand. That is its primary market

Copies of it sell in China for around 7000 RMB.

If a list of who sells a similar design in China was created it be a long list and so would after market parts.

Also altering off originals, like dropping in a high output engine in most countries makes it no longer street legal. For example in the US the engines are sold but for racing, only because some some people race tiny bikes. If you get caught with one that is modified on the streets they can confiscate it and the crime is falsification of registration and a felony in most states.