The Serbian Government has hired the Cleary Gottlieb Steen & Hamilton LLP firm to lobby for its interests in Washington, the Voice of America reported on Tuesday.

According to a document filed with the US Justice Department on March 27, that firm will lobby for Serbia with all interested American parties (including US government officials) on issues of regional cooperation which include Serbia and Kosovo.

The US firm has also signed a contract with the Serbian State Attorney’s Office which names Public Attorney Olivera Stanimirovic as the primary contact between the Government and Cleary Gottlieb Steen & Hamilton LLP.

The contract also says that the firm has been representing the successor states of the former Yugoslavia in the closure of the New York branches of three Yugoslav banks since November 2013.

The VOA reported the document filed with the Justice Department does not specify the cost of the services but added that Cleary Gottlieb Steen & Hamilton LLP reported amounts of between 20,000 and 340,000 USD for services rendered in its quarterly reports.