Page 89 - Anual report STi 2022_eng

friendly design. Thus, monitoring air quality, speed, wind direction, and humidity is informative and useful to enhance the
services of the Company. The air quality inspection results shall be applied to expand its environmentally-conscious business.

The Company has participated in developing projects together with partners providing data from the air quality monitoring
station and the installation of air sensors to test air quality at Benchakitti Forest Park.
In addition, to assure the environmental performance carried out by the Company in the explicit way,

the Company has joined the ‘Care the Bear’ project together with the Stock Exchange of Thailand (SET)
in adopting as a tool to promote create awareness, employee behavioral modification, GHG emission
reduction and GHG calculation of overall activities and operations of the Company, participation and
mobilization to reduce global warming for our planets through activities and online meetings, and
shareholders' meetings, etc., including the environmental management plans in collaboration with the
Company's working groups as well as performance supervision to achieve its ultimate goals.

4. Management Discussion and Analysis

4.1 Performance Analysis

Service Income

In 2021 - 2022, the STI Group had service revenue of 1,732.80 million baht and 1,736.84 million baht, respectively
which can be classified into (1) revenue from consulting and project management and (2) revenue from architectural,

engineering design, and other services according to the type of business of the STI Group. The details of revenue from
services classified by segments of the STI Group in 2021 - 2022 are as follows:

Revenue Structure From Services Classified by Segments of the STI Group for the Year Ended December 31, 2021 - 2022

Consolidated Financial Statements for the Year Ended
Details By December 31, 2021 December 31, 2022

Million Baht Percentage Million Baht Percentage

Revenue from consulting and project STI/STH/AEC 1,441.37 83.18 1,416.18 81.54

management

Revenue from architectural, engineering STH/AEC 291.43 16.82 320.66 18.46
design and other services

Total service revenues 1,732.80 100.00 1,736.84 100.00

Consulting and project management business generate The STI Group is a service provider for consulting,
the majority of the STI Group's revenue, accounting for 83.18 managing, and supervising construction work on various types

percent and 81.54 percent of total revenue from services, of projects. The details of the proportion of revenue from
respectively, in 2021 - 2022. consulting and project management classified by project types
in the STI Group for 2021 and 2022 are as follows:

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