Toronto-based miner Centerra Gold says corruption allegations against a former Canadian CEO of its operations in Kyrgyzstan are without merit.

Centerra Gold says Leonard Homeniuk was arrested by Bulgarian authorities at the request of Kyrgyzstan, where the company's largest gold mine is located.

Centerra Gold spokesman John Pearson says the allegations that led to Homeniuk's arrest and detention date back to when the company was founded in 2004 and specifically relate to the Kumtor mine.

Kyrgyzstan and Centerra Gold have sparred over the ownership and revenue of the Kumtor project for years.

A non-binding agreement signed by both sides in 2013 calls for state-owned Kyrgyzaltyn JSC to exchange its 32.7 per cent interest in Centerra Gold for 50 per cent of a joint venture that would own Kumtor.

Pearson says the company remains in negotiations with Kyrgyzstan over the future of the Kumtor mine.