Page 94 - Anual report STi 2022_eng

Other income workers and entrepreneurs affected by COVID-19 in the amount

The STI Group has other revenue in 2021-2022, in the of 3.6 million baht. As a result, other revenue in 2022 decreased
amounts of 9.08 million baht and 6.01 million baht, or 0.52 by 3.07 million baht compared to 2021.
percent and 0.34 percent of total revenue each year, respectively. Cost of Services and Gross Profit
These include interest income and gain from other current The STI Group has service costs in 2021-2022 in the

financial assets, etc. In 2022, the STI Group had other revenues amount of 1,225.70 million baht and 1,198.47 million baht,
that increased from profits from the sale and write-off of respectively, which can be classified into (1) costs related to
equipment in the amount of 1.20 million baht, while in 2021, employees, (2) sub-contractor costs, and (3) costs related
the STI Group had other revenues that increased from government to other services. The details of the cost of services classified
assistance policies according to measures of remedy for
by type are as follows:

Cost Structure of Services of the STI Group For the Year Ended December 31, 2021 - 2022

Consolidated Financial Statements Year Ended
Items December 31, 2021 December 31, 2022
Million Baht Percentage Million Baht Percentage

Costs of employees 647.75 52.85 706.68 58.97

Costs of subcontractors 440.25 35.92 356.21 29.72

Costs of others* 137.70 11.23 135.58 11.31

Total cost of services 1,225.70 100.00 1,198.47 100.00

Remarks: * Costs of others such as professional fee, rental expenses from lease agreements, blueprints, copy fee, material cost etc.

Most of the cost of services for the STI Group is related party to provide services as a consultant, management and
to staff costs. The STI Group has costs related to employees supervision of construction, architectural and engineering

in the years 2021 - 2022, in the amounts of 647.75 million baht design, or other work related to the service to provide services
and 706.68 million baht, respectively, or representing 52.85 in the scope of work that require specialized expertise or

percent and 58.97 percent of the cost of providing services to compensate for such short-term personnel shortages.
each year. The cost related to employees of the STI Group The STI Group has sub-contractor costs in 2021 - 2022 in
in 2022 amounted to an increase of 58.93 million baht, or an the amounts of 440.25 million baht and 356.21 million baht,

increase of 9.10 percent compared to the previous year. respectively, which is a decrease of 84.04 million baht or a
The increase in staff-related costs for the year was mainly decrease of 19.09 percent compared to the previous year.

due to an increase in staff salaries in the current year and an The cost of services for the STI Group can be classified
increase in the number of employees to accommodate the according to the type of business of the STI Group as follows:
increased workload in the current year and in the future. (1) The cost of services in the consulting and project

In addition, in accepting some projects that have a management business; (2) The cost of services in the

service scope that requires specialized knowledge or in the architectural and engineering design business; and other
event that the STI Group lacks personnel for short-term service, services as follows:
the STI Group will hire a sub-contractor, which is a third

92 Annual Report 2022 (56-1 One Report)