API Perforating, Ltd. ("API" or the "Company")

API is a leading provider of cased hole wireline solutions including perforating, logging and other wireline services to the oil and gas industry. The Company currently operates through six facilities located across Texas and is headquartered in Albany, TX. The Company was founded by three proven industry veterans with over 60 years of collective experience in the wireline industry. Since formation in 2010, the Company has rapidly grown in size and currently operates 29 wireline units and employs approximately 270 employees.

Tong Petrotech, Inc.

Tong Petrotech is the U.S. based subsidiary of Tong Oil Tools set up exclusively to complete the transaction.

Tong Oil Tools. (SZSE:3001640)

Tong Oil Tools is a Chinese public company listed on the Shenzhen stock exchange. Tong is an integrated oilfield service company, providing oilfield stimulation services, well completion services, and oilfield integrated treatment technology services. It offers stimulation technology services that comprise perforation, fracturing and wellbore services consisting of logging, drilling, and workover services. Tong has operations in China, Indonesia, Kazakhstan, Sudan, etc. The company was founded in 1995 and is headquartered in Xi'an, the People's Republic of China.

PPHB, LP (“PPHB”)

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