3.2.1 Network Exploitation and Grid Asset Consolidation

Key production assets in 2023-2025

The Company’s repair and maintenance target for 2025 totaled RUBruble 7,187 million, real expenses in 2025 totaled RUBruble 8,154 million or 113%.

The 2025 repair program (branch breakdown) , RUBruble million

The overrun was mainly due to recovery and unscheduled works, inter alia, due to the grid assets consolidation and assuming the RGOregional grid operators functions. Total costs of the branches spent on outsourcing repair works totaled RUBruble 1,451 million or 18%, with RUBruble 6,703 million or 82% spent on in-house repair works.

The Company’s repair program in 2023-2025

The overrun was mainly due to recovery and unscheduled works. The repair program for 2026 totals RUBruble 7,210 million or +0.3%YoY, with RUBruble 5,892 million or 82% to be spent on in-house works and RUBruble 1,318 million or 18% to be spent on outsourcing works.

The number of incidents on 110kV+ networks of the Company’s branches decreased 1.6% on 2024 and decreased 7.1% on 2023. The diagram shows the amount of incidents and disturbances on 110kV+ networks.

The number of incidents in 2023–2025

Primary incident factors

Primary factors of incidents on 110kV+ networks in 2025 are natural impacts, external impacts, aging of equipment, exploitation defects. In 2025, all branches of the Company achieved long-term reliability targets, set by the regional regulators, incl. with allowances made for permissible variation coefficient of 30%, stipulated by the Guidelines^[14].

Reliability target and real values of our branches

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To enforce reliable grid performance, the Company has approved a set of special-purpose programs on technical development^[15], incl.: programs on reduction of incident rate and enhancement of equipment reliability; maintenance and repairs; upgrade (retrofitting) of grid facilities; compilation of emergency stock; enhancement of fire safety; equipment of special-purpose vehicles and transport with state-of-the-art security tools; purchases of electric supply reserves, provision of test equipment and instruments for M&Rmaintenance and repair works, etc. The primary expected effect from the above-mentioned and investment programs lies in the control of the level of incident rates and creation of conditions for achieving the reliability targets set by the regulators.

In order to create a unified electric grid area, the activity of consolidating (integrating) electric grid assets is being carried out by PAOPublic Joint-Stock Company Rosseti Ural (together with its subsidiary AOJoint-Stock Company EESK) on a priority basis, enabling the formation of a single center of responsibility for the quality and reliability of electricity supply to consumers and providing additional opportunities for the technological connection of new consumers to the consolidated networks in the regions of presence. Under the framework of legislative changes, the institution of SIRGO has been introduced^[16]. In connection with the assignment of this status in all three regions of presence, the Company, implementing the provisions of legislation and regulatory acts, actively interacts with the administrations of municipal entities and the regional authorities to transfer municipal and regional electric grid assets under the management of a single operator. By the end of 2025, the Company has already consolidated 94.3% of municipal and regional networks under its management in Chelyabinsk region. In the Perm and Sverdlovsk regions, all necessary measures have also been completed, which will make it possible in the future to achieve high indicators for the consolidation of municipal and regional networks.

Share of municipal/regional networks by the SIRGO in the regions, %

Within the framework of the Comprehensive Plan for the Modernization and Expansion of Backbone Infrastructure^[17], a policy is being implemented that is aimed at reducing the number of RGOsRegional grid operators and consolidating assets on the basis of SIRGO. Since 2023, a total of 74 organizations have lost the RGOregional grid operators status in the regions of the Company’s presence.

Reduction of the number of the RGOregional grid operators in dynamics

In 2025, the market share of the Rosseti Ural Group based on gross revenue requirement amounted to 82%. In the course of 2025, eight RGOsRegional grid operators in the regions where the Company operates lost their RGOregional grid operators status, the electric grid assets of seven of which were consolidated under the SIRGO (PAOPublic Joint-Stock Company Rosseti Ural), which contributed to an 8.7% increase in the Company’s GRRgross revenue requirement‑based market share in 2026 and an increase of this indicator to 90.6%. As the measures are implemented under the SIRGO status, a further increase in the GRRgross revenue requirement‑based market share of PAOPublic Joint-Stock Company Rosseti Ural is expected.

The priority methods for consolidating electric grid assets (with AOJoint-Stock Company EESK included), in 2025 were:

• acceptance, as the SIRGO, of municipal (regional) electric grid property under gratuitous use agreements (17,135 c.u.conventional units);
• acceptance, as the SIRGO, under agreements on the order of using electric grid property of RGOsRegional grid operators that lose their status from 2026 (13,483 c.u.conventional units);
• acquisition of property in ownership (the volume of electric grid assets under concluded sale agreements amounted to 6,600 c.u.conventional units).

As of 01.01.2026 the Company had consolidated electric grid property amounting to 113,029 c.u.conventional units

Consolidation of grid assets

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