After an unsuccessful yearlong search for a buyer, Manier & Herod attorney and bankruptcy trustee Michael Collins will on Aug. 29 auction off the assets of Tri Star Aluminum, which has the capacity to make 380,000 pounds of the metal daily from its plant east of Lebanon. Bankruptcy Judge Keith Lundin last week approved Collins' motion to sell, which he filed after talking "in depth" to five potential saviors. The end of Tri Star, which stopped operating in May, looks set to sting lenders Liberty State Bank and Wilson County Bank & Trust. The latter also holds Tri Star's mortgage on a 96-acre plot next to the Alexandria plant; that land is not included in the auction.