Advanced Joining Technologies, Inc. (“AJT” or the “Company”)

Advanced Joining Technologies, Inc. (“AJT” or the “Company”) is a manufacturer of products with applications primarily for the oil and gas industry, including aluminum drilling risers for the ultra deepwater sector. The Company is led by a highly experienced management team with a particular focus on lean manufacturing and high spec metallurgical welding requirements. The management team has numerous patents relating to high specification welding and metal alloy development. Founded in 2004, AJT is headquartered in Santa Ana, California.

Treadstone Partners, LLC (“Treadstone”)

Treadstone Partners, LLC is a Dallas-based private investment firm founded in 1993. The firm has a distinctive expertise with special situations and alternative investments that are outside the mainstream of traditional investment opportunities. Particular emphasis is placed on lower middle market companies that are over-leveraged, under- managed or confronting some other event-driven development. Investments are made across the capital structure and range from discounted bank debt to controlling equity interests.

PPHB, LP (“PPHB”)

PPHB is an independent investment banking firm providing financial advisory services exclusively to clients in the oilfield equipment and service industry.