Interconexión Eléctrica (ISA) investor relations material

Executive summary

• Investment commitments for 2026-2030 total COP 28.1 trillion, supporting regional growth across Brazil, Colombia, Chile, Peru, and Panama.

• Strong performance in 1H26, with operating revenues of COP 8.6 trillion, EBITDA of COP 4.9 trillion, and net income of COP 1.3 trillion, up 17%, 20%, and 9% year-over-year, respectively.

• New projects and reinforcements energized, generating new revenue streams and improving service reliability.

• Secured USD 2.5 billion in project awards and closed strategic transactions, reinforcing regional leadership.

• Recognized for sustainability, ranking in the top 10% of utilities globally in the Dow Jones Index.

Financial highlights

• EBITDA reached COP 4,889 billion for 6M26, a 20% increase compared to 6M25; net profit rose 9% to COP 1,224 billion.

• 2Q26 operating revenues: COP 4.7 trillion, up 42% year-over-year; EBITDA: COP 2.7 trillion, up 62%; net income: COP 695 billion, up 53%.

• Investments in 2Q26 totaled COP 1.7 trillion, up 23% from 2Q25; 1H26 investments reached COP 3.1 trillion, up 16% year-over-year.

• Issued sustainable bonds (COP 2.4 trillion), debentures (COP 676 billion), and preferred shares (COP 752 billion) to support growth.

• Dividend payment of COP 218 per share and COP 241 billion made in May 2026.

Outlook and guidance

• Investment plan through 2030 includes committed and estimated investments, focusing on regional expansion and infrastructure upgrades.

• Growth driven by new project commissioning, awarded concessions, and disciplined investment.

• Ongoing expansion in energy transmission, roads, and telecom, with significant projects under construction.

• ESG leadership reaffirmed, with inclusion in Dow Jones Best-in-Class Index and strong sustainability initiatives.