CGT deductible fees for share trading

I use the 212 Trading platform for stocks and shares dealing. The HMRC site states that certain fees can be deducted from any gain, such as SDRT and brokerage fees. 212 does not charge brokerage fees per trade but they do charge an FX fee when converting from GBP (£) to USD ($) when buying US stocks, and vice versa when selling US stocks. Can this FX fee be deducted the same as SDRT?

Hi ,
 

Please have a look at the guidance at CG78300 onwards (   :  CG78300 - Foreign currency: introduction   ). Thank you .