TLK: 20-F financial filing

PERUSAHAAN PERSEROAN PERSERO PT TELEKOMUNIKASI INDONESIA TBK_December 31, 2025 Table of Contents ​ ​ UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Form 20-F ​ ☐ REGISTRATION STATEMENT PURSUANT TO SECTION 12(b) OR (g) OF THE SECURITIES EXCHANGE ACT OF 1934 ​ ​ OR ​ ​ ☑ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 ​ ​ ​ For the fiscal year ended December 31, 2025 ​ ​ ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 ​ ​ OR ​ ​ ☐ SHELL COMPANY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 ​ ​ ​ Date of event requiring this shell company report ​ Commission file number 1-14406 Perusahaan Perseroan (Persero) PT Telekomunikasi Indonesia Tbk (Exact name of Registrant as specified in its charter) ​ Telecommunications Indonesia (a state-owned public limited liability company) ( Translation of Registrant’s name into English ) Republic of Indonesia (Jurisdiction of incorporation or organization) ​ Jl. Japati No. 1 , Bandung 40133 , Indonesia (Address of principal executive offices) ​ Investor Relations Unit Telkom Landmark Tower , Jl. Jend. Gatot Subroto No. 52 , 51 st Floor , Jakarta 12710 , Indonesia ( 62 ) ( 22 ) 452-7101 ( 62 ) ( 21 ) 521-5109 (Name, Telephone, E-mail and/or Facsimile number and Address of Company Contact Person) Securities registered or to be registered pursuant to Section 12(b) of the Act. ​ ​ ​ ​ ​ ​ Title of Each class ​ ​ ​ Trading Symbol(s) ​ ​ ​ Name of each exchange on which registered American Depositary Share representing 100 Series B Shares, par value 50 Rupiah per share ​ TLK ​ New York Stock Exchange Series B Shares, par value 50 Rupiah per share ​ ​ ​ New York Stock Exchange * ​ Securities registered or to be