Shareholding Structure

COPEL’s share capital is R$ 12,831,619 thousand, comprising shares with no par value. In 31, December 2025 the Company’s capital was represented as follows:

Thousand shares

Shareholders	Common	%	*Preferred Special_Class**	TOTAL	%
State of Paraná	474,645	15.9	<1	474,644	15.9
BNDESPAR	655,808	22.0	–	655,808	22.0
Free Floating B3 NYSE LATIBEX	1,833,675 1,731,224 100,654 1,797	61.5 58.0 3.4 0.1	–	1,833,234 1,729,452 101,959 1,823	61.5 58.0 3.4 0.1
Management/Other Shareholders	5,944	0.2	–	5,944	0.2
Treasure Shares	12,740	0.4	–	12,740	0.4
TOTAL	2,982,811	100.0	–	2,982,812	100.0

* State of Paraná owns one special class preferred share with veto power as set forth in the Bylaws.