Straits Energy Resources Bhd. is an investment holding company, which provides management services. It operates through the following segments: Oil Bunkering and Shipping Related Services; Inland Transportation and Logistics; Port Operation and Management, Ship-to-Ship (STS) Operation; Telecommunication and Network Services, Investment and Holding Management Services, and Others. The Oil Bunkering and Shipping Related Services segment refers to includes oil trading and bunkering services and its ancillary support services such as vessels management services, chartering services, and shipping agency services. The Inland Transportation and Logistics segment transports cement and related products. The Port Operation and Facility Management Services segment carries out port operations such as mooring, unmooring, berthing of vessels, cargo handling charges, storage charges, container lifting charges, use of yard for stuffing and un-stuffing. The Telecommunication and Network Services segment provides solutions, dealing with all kinds of products and services in telecommunication from infrastructure, networking, maintenance, software, hardware, and related services. The STS Operation Services segment includes cargo transfer operations between two seagoing vessels. The Investment Holding and Management Services segment deals with the investment services of the company. The Others segment refers to dormant subsidiaries. The company was founded on December 4, 1996 and is headquartered in Kuala Lumpur, Malaysia.