Sung-Min Ha

SK Holdings Co., Ltd. is a holding company which engages in management of its affiliates and subsidiaries. Through its subsidiaries it operates in the fields of energy, chemicals, information technology, logistics, and services. The company was founded on October 13, 1962 and is headquartered in Seoul, South Korea.

GSM Association functions as a association representing interest of mobile operators. It offers programs and advocacy initiatives including future networks, identity, and internet of things, industry purpose, mobile for development, spectrum and the mobile economy. The company was founded in 1982 and is headquartered in London, the United Kingdom.

Part of Telefónica SA, Mobile Network Operations provides mobile telephone network services. Mobile Network Operations was acquired by E-Plus Service GmbH & Co. KG from mobilcom AG on May 13, 2003 for $22.47 million.

Bridge Mobile Pte Ltd. provides mobile telecommunication services. The firm offers enterprise such as spend and usage management, ordering and asset management, service management, reporting and analytics, and project rollout; and roaming services. The company is headquartered in Singapore.