MOSCOW, September 15 - RAPSI, Dmitry Shchitov. A commercial court registered on Thursday a utility's appeal against a court order to pay $28.5 million to Rusal, a court official told the Russian Legal Information Agency (RAPSI).

The Siberian Interregional Distribution Network Company filed its appeal with the East-Siberian District Federal Commercial Court. A commercial court ordered it to pay $28.5 million for unjust enrichment, and an appellate court upheld this decision.

According to Rusal, it demanded a 796.9 million ruble payment from the utility company on December 31, to be paid by February 10. It claimed the utility owed it that amount for electricity from January to April. However, the utility failed to make the payment.

Rusal is one of the world's top aluminum companies, with a 10-percent share of both the world's aluminum and alumina output.

The Siberian Interregional Distribution Network Company is engaged in network power transmission across Russia and services an area of 2.2 million square kilometers.