TOMSK, July 13 - RAPSI. Timur Bukeykhanov, a former executive of TVEL who has been accused of commercial bribery at the Siberian Chemical Plant, is now on his fourth day in the investigative isolation ward after the court ruled that he may be released on bail.

TVEL is a fuel subsidiary of the State Atomic Energy Corporation.

It was previously reported that the court upheld the investigation's appeal to change the measure of restraint for Bukeykhanov on July 10. Bukeykhanov had pleaded guilty. The court released the manager on a 5 million ruble ($152,700) bail. However, Bukeykhanov is still being held in custody.

The Tomsk Region Judicial Department, where the bail was to be submitted, told RIA Novosti that no money has been transferred so far.

The Leninsky District Court in Tomsk released Timur Bukeykhanov on $152,700 bail, the regional investigative department reported on Wednesday. Investigators filed for his release as there were no longer any grounds for keeping the suspect in custody.

Investigators believe that the plant's CEO, Vladimir Korotkevich, his deputies, Yuri Kungurov and Leonid Romanenko, as well as Bukeykhanov, assisted the International Center for Technology and Trade CEO in concluding a contract for coal procurement worth 557.2 million rubles ($17 million). They also agreed that the center would give them monthly kickbacks.

The center's management and Bukeykhanov allegedly received a total of 6.79 million rubles ($207,370) from the centre's CEO, which investigators say was divided between them. Korotkevich, Kungurov and Bukeykhanov were subsequently arrested.

The Siberian Chemical Plant is one of four Russian plants involved in uranium enrichment. The company provides nuclear power plants with uranium for nuclear fuel, for the production of heat and electricity.