F2Pool is one of the biggest Bitcoin minning pools in the world. This is reported by the CoinDesk.
Despite the fact that SegWit proposal received support for giang amount of Bitcoin related companies and the majority of minning pools, some of the company doesn't support it.
F2Pool was one of the original signatory of the agreement, its operator Wang Chun is now among the proposal's detractors.
No. I don't support [the] Segwit2x hard fork.
The share of F2Pool in the Bitcoin network is 8.8%, which makes it the fifth largest pool.
But still, other pools like BTCC and BitFure still support SegWit.
We are strong supporters of the New York Agreement (Segwit2X). We support scaling bitcoin and doing so responsibly. We hope that the hard fork part of Segwit2X will also be upheld.
BitFury has the same opinion.
The initial agreement for SegWit2x has not changed.
Also, Slush Pool, that did not sign the agreement, has not yet expressed its position. However, given the previous statements of the head of Slush Pool Marek Palatinus, who sharply criticized any attempt to implement any code different from what Bitcoin Core offers, we can expect that his answer will also be negative.