The 26-year-old joined West Ham from Sochaux in the summer of 2012 and arrived at Upton Park on the back of a solid goalscoring record in France where he bagged 24 goals in just 42 starts.
However, Maiga has scored just three goals in 31 Premier League appearances for West Ham after often being played out of position and has started only 13 times.
West Ham are reportedly ready to let Maiga move on before the transfer window closes and Sivasspor are not the only club chasing his signature, according to his representative Willie McKay.
"Sivasspor have expressed an interest in Maiga and we are talking to them and several other clubs," McKay told Sky Sports.
"There are other Turkish clubs, French clubs and two in the UK who are interested in him.
"West Ham are ready to let him leave and it could be a permanent deal.
"Modibo might go out later this week to Turkey for talks and have a look around the clubs who are interested."