Per Curiam

Plaintiff union represented workers at a Buffalo-area steel plant operated by Cookson America’s subsidiary Vesuvius USA Corp. between 1992 and 2008 (Hamburg plant). Under a 1994 collective bargaining agreement (CBA) certain employees could receive a retiree medical allowance (RMA) on turning 65. In 2004 the parties increased the RMA amount to $8,000. In August 2007 Vesuvius announced the Hamburg plant’s closure in one year. The union and Vesuvius negotiated a facility closure agreement (FCA), which said the company would honor the CBA’s RMA provision. Between the plant’s August 2008 closure and Dec. 31, 2010, Vesuvius paid RMAs to six workers. On Dec. 30, 2009, Cookson America Inc. ceased RMAs to 36 potentially eligible retirees hired before March 15, 1994. District court held that the CBA remained operative until the Hamburg plant closed, and that the FCA provision requiring Vesuvius to "honor the [RMA] provision of the CBA" necessarily required it to do so after the plant’s closure. Second Circuit affirmed judgment. District court correctly interpreted the parties’ agreement. Further, as a party to the FCA the union had standing to enforce it, even where the benefits of enforcement accrued to third-party retirees.