Yes, china is biggest bitcoin miner .

China has the richest in the world and I think they have the highest investment and bank investment but I think I can not accept china bitcoin so they can not afford the price of bitcoin the whole time I know it depends on the investors of crypto currencies.

in 2017 i know that this news is good that china is controlling bitcoin but i dont know about it right now, is china still controll the bitcoin? if yes i think we should care about bitcoin because every time china can makes the price down like last time, we can see that the price of bitcoin suddenly going down without any reason

China's stock exchange reported 98% of global volume. It shows great dominance by the Chinese market, right ??
The counterfeit is unlike the rest of the world, the chinse exchange is unique because they do not charge a trade, but they make money from withdrawal fees from exchange, this cost decreases as your trading volume increases so this gives incentives to traders to increase their trading volume from buying & sell from their own at a zero cost. be smart and not greedy! Like the EU & US exchanges where you need a stack of capital to minimize trade costs

China probably is controlling the market. There is no doubt that China is the biggest market for cryptocurrencies. A huge portion of bitcoin mining is done in China, by big giants. They can easily control the market. Cryptos are still in its early stages I believe. Regulations are a good way to stop these manipulations.

Bitcoin is not controlled by China, but because so many investors are from China, the volatility depends heavily on Chinese investors!
Digital money is the development of currency, it takes more time to develop.

what is meant by control? if this is a concern of 51 %, then Yes China is one of the strongest hardware manufacturers and with a very branched structure of bitcoin pools. and if you take wallets where bitcoins are stored, most of their owners live in the US.

if the bitcoin holders the majority of chinese then it could be controlled by china. but all depend on the market, because in the market is not chinese people only. chances are they did come with big capital then they can control the bitcoin market.

I have heard a lot of news that a large percentage of bitcoins are in China. So I believe the price of bitcoins really manipulates. Hopefully this will come back and the natural increase in the price of bitcoins. For all of us that holders have a profit and those who lost their previous crashes in December 2017 will recover their losses.