SK Telecom

017670 · KOSPI · Communication Services · LARGE CAP

Treasury share disposal: results report

SK Telecom Co., Ltd. disposed of 1,061 treasury common shares to employees on 2026-08-31 at US$68.62 per share for total proceeds of US$72.8K, leaving 1,731,081 treasury shares (0.81% of shares outstanding).

Treasury Shares(Treasury share disposal: results report)· FILED 2026-09-01· RCEPT 20260901000214

What happened

Treasury share disposal: results report

SK Telecom Co., Ltd.

To: Commissioner of the Financial Supervisory Service

September 1, 2026

Company name: SK Telecom Co., Ltd. Representative director: Jeong Jae-heon Head office address: 65 Eulji-ro, Jung-gu, Seoul Phone: 02-6100-2114 Website: https://www.sktelecom.com Preparer: (Title) Head of Corporate Center (CFO) (Name) Park Jong-seok (Phone) 02-6100-2114

1. Name and address of the issuer a. Name: SK Telecom Co., Ltd. b. Address: 65 Eulji-ro, Jung-gu, Seoul

2. Matters relating to the disposal report a. Material event report filing date: August 27, 2026 b. Disposal period: from 2026.08.28 to 2026.09.30 c. Type and number of shares reported for disposal: 1,061 registered common shares in total

3. Disposal details (Unit: KRW, shares) Date - Type - Order quantity - Disposed quantity - Per-share disposal price - Total disposal amount - Disposal recipient - Brokerage firm - Financial investment business ID 2026.08.31 - common shares - 1,061 - 1,061 - 94,200 - 99,946,200 - employees - SK Securities - 00131850 Total - - - 1,061 - 1,061 - - - 99,946,200 - - - - - -

Note 1) The date above is the date the treasury shares were actually delivered. Note 2) The per-share disposal price above is the closing price on the date the treasury shares were actually delivered.

4. Consistency between the disposal report and the actual disposal Planned disposal shares - Actual disposal shares - Match - Reason for any discrepancy Common shares: 1,061 - Other shares: - - Common shares: 1,061 - Other shares: - - Match - -

5. Treasury share holdings after disposal (as of 2026.09.01) (Unit: KRW million, shares, %) Share type - Holdings under Article 165-3 (A) - Holdings under trust agreements under Article 165-3 (B) - Total (A+B) quantity/ratio/total value - quantity/ratio/contract amount - quantity/ratio/amount Common shares: 1,731,081 / 0.81 / 86,937 - - / - / - - 1,731,081 / 0.81 / 86,937 Total: 1,731,081 / 0.81 / 86,937 - - / - / - - 1,731,081 / 0.81 / 86,937

Filed2026-09-01, Treasury share disposal: results report
SourceDART rcept 20260901000214 → open original filing

Source: DART. Information only, not investment advice.

For informational purposes only. This is not investment advice, a recommendation, or a solicitation to buy or sell any security. Do your own research; any investment decision is your own responsibility.

Data from DART, Korea's official corporate-filing system. Data sourced from official DART filings. Accuracy is not guaranteed. Figures are as of the date shown. As of 2026-09-01 (KST). · Converted at 1 USD ≈ ₩1,325 (rate of 2026-10-21).