German glass packaging manufacturer, Gerresheimer Glas, which is being sold by JP Morgan Partners and Investcorp, has attracted the attention of private equity firms Blackstone and Apax and at least one trade buyer, sources close the process said recently. Gerresheimer was jointly bought by JP Morgan, the private equity arm of US investment bank JP Morgan Chase & Co, and Bahrain-based global investment bank Investcorp, in 2000. JP Morgan is managing the sale and is also offering financing to potential purchasers. "They might not sell it; they're trying to find out if someone's willing to pay a big enough price," said a source. Another source said other private equity firms were also likely to express an interest in the business. Gerresheimer has annual sales of around EUR 550M.