S-OIL

ESG Performance

Key ESG Performances

S-OIL has continued to enhance ESG value by addressing climate change, managing environmental impacts, strengthening its occupational safety and health management system, promoting workforce diversity, and upholding compliance and ethical management. Going forward, we will consistently manage our key ESG issues and work together with our stakeholders, including shareholders, employees, customers, suppliers, and local communities, to create long-term corporate value and achieve sustainable growth.

• TRCF (Total Recordable Case Frequency): Rate of recordable injuries for employees and contractors per 100 full-time workers

Safety and Health (Unit : case/200,000 working hours)

Safety and Health : Category, 2024, 2025 Table.

Category	2024	2025
S-OIL
TRCF	0.00	0.03
LTIR	0.00	0.03
Contractors
TRCF	0.07	0.00
LTIR	0.07	0.00

• TRCF (Total Recordable Case Frequency): Rate of recordable injuries for employees and contractors per 100 full-time workers
• LTIR (Lost Time Injury Rate): Rate of lost-time injuries relative to total work hours

Safety Training (Unit : sessions, person)

Safety Training : Category, 2024, 2025 Table.

Category	2024	2025
S-OIL
No. of training sessions	734	675
No. of participants	43,533	43,806
Contractors
No. of training sessions	387	399
No. of participants	18,669	28,783

Employee and Officers Status (Unit : person)

Employee and Officers Status : Category, 2024, 2025 Table.

Category	2024	2025
Male	3,215	3,244
Female	282	288
Total	3,497	3,532

Employee engagement Survey (Unit : score / 10)

Employee engagement Survey : Category, 2024, 2025 Table.

Category	2024	2025
Employee engagement survey result	8.68	-

• Survey frequency: biennial