SCI Annual Report 2015

the products to the customer groups being the contractors winning the bids for work of the government
organizations (such as Electricity Generating Authority of Thailand, Provincial Electricity Authority) or organizations
undertaking transactions principally on electric energy group both in country and overseas. On the part of the
Substation Steel Structure, the Company designs and manufactures the Substation Steel Structure in many
different forms according to the size of the voltage such as 115 kV, 230 kV, 500 kV, but, in general, it will consist
of the Take Off Structure which is the characteristic of a small sized steel braided tower of not so tall in performing
function to support high voltage cables from the transmission tower cable structure to substation and Equipment
Support of structure to support the system within the substation. Characteristics of the substations consist of
diversified forms depending on the requirements of the customers or equipment designed by customers for |
manufacturing to attain the functional objective.
• Telecommunication Tower; It is the high tower designed for installing communication equipment in telecommu
nication system in: such as; audio and video broadcasting system, mobile telephone signal transmission system.
The telecommunication towers manufactured by the Company are hot-dip
galvanized steel structures which are the same as those of the transmission towers. The Company’s telecommu
nication towers can be divided into 2 categories as follows: 1) Hot-dip galvanized steel structure tower at the
height level from 35-100 meters without any cables being latched onto the tower structure, but, with the
structure being directly latched onto the foundation which is designed to support it against wind power by itself.
So, it is suitable to be installed as the telecommunication tower in the place of a limited area, 2) Hot-dip
galvanized steel structure tower at the height level from 16-120 meters which require steel strand wires for
latching onto the foundation for supporting against wind power or, in other words, it is the tower requiring to
rely on the other structure to support it and wide area for installing it on with a restriction on the installing of the
equipment in. Presently, the Company’s manufacturing capacity is approximately 2,000 towers per year. The
Company usually accepts the manufacturing jobs from contractors of government and private sector, e. g.
Mobile Operators such as TRUE Corporation Public Co., Ltd., (TRUE), Total Access Communication Public Co.,
Ltd., (DTAC) and Advance Info Service Public Co., Ltd., (AIS), etc.
• General Steel Fabrication and Hot-Dip Galvanized Service: The Company accepts the jobs of manufacturing
general galvanized steel fabrication according to the requirements of customers. General steel fabrication
manufactured by the Company consist of many types such as steel structure in steel structure panel for setting
up solar cell panel, steel bridges over railroads, steel railroad sleepers. The Company’s customers are contractor
groups taking mainly contracting works in the form of Turn Key from project owners which EGAT, State Railways
of Thailand (SRT), companies generating power from solar energy, etc. Work volumes will depend mainly on
quantity of the projects and purchase orders from the contractors.
In addition, the Company provides hot-dip galvanized services to the third persons (if the hot-dip capacity
should have remained left over after the product hot-dip in the Company group was accomplished first). The
Company’s hot-dip capacity is approximately 2,000 tons per month or 24,000 tons per year. The hot-dip
galvanized products which the Company is capable to do are transmission towers, telecommunication towers,
cable trays, steel bridges, guard rails, electric poles, road sign poles, building and godown structures, etc.
On 16 December 2015, the Company Board of Directors approved the investment to establish a subsidiary company in
order to invest in the construction of the plant to manufacture transmission towers, telecommunication towers and hot-dip
galvanizations in Myanmar resulting in the Company to have the increasingly manufacturing capacity and be able to generate
revenues to the Company/its subsidiary in the future which is expected to be
Annual Report 2015
2. Service Business
The Company provides services on designing, surveying, procurement, construction and installing electrical engineering
work system both on electrical high voltage and power distribution systems in the form of Turn Key by taking the jobs from
foreign customers both of the government and private sectors. In this respect, the Company will be the main contractor taking
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