After the Stoke praised the contributions his now ex-striker had made at the Britannia Stadium, Tuncay was quick to repay the compliment.
"On three occasions, moves to Germany have fallen through at the last minute, so I am delighted, but also relieved, that this time I have been able to make the most of this opportunity.
"I would like to thank the manager and everyone at the club and, of course, the supporters for making me feel so welcome.
"I can assure you I would not have joined another English club, but this was too good an opportunity for me to fulfil my dream."
However, the future of another Stoke goalscorer Ricardo Fuller was less clear on transfer deadline day.
Pulis revealed on Sunday that Sunderland had made a bid for the 31-year-old Jamaican, despite the Black Cats rejecting claims they had made a move.
Fuller has been Stoke's leading scorer in each of the last three seasons and has found the net three times in 23 games so far this term.
The former Preston North End and Southampton forward is under contract at the Britannia Stadium until the summer of 2012.
Fuller, who has scored 48 goals in 178 appearances since joining the Potters from Southampton in August 2006 for £500,000, came on in the second half in Stoke's 1-0 win at Wolves in the fourth round of the FA Cup on Sunday.
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