MANDATORY NOTIFICATION OF TRADE BY PRIMARY INSIDERS

21.9.2026 20:06:23 CEST | Soiltech ASA | Managers' transaction

Soiltech ASA (OSE: STECH) Sandnes, Norway, 21 September 2026

Reference is made to the stock exchange announcement published by Soiltech ASA on 21 September 2026 regarding completion of share buyback program in connection with the Employee Share Purchase Plan (ESPP).

The following primary insiders have purchased shares under the Plan:

Primary insider | Position | Number of shares

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Jan Erik Tveteraas | Chief Executive Officer | 649

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Tove Vestlie | Chief Financial Officer | 649

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Michael Olsen | Chief Commercial Officer | 649

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Erik Bjøndal-Røvde | Chief Operating Officer | 649

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Glenn Åsland | Senior Vice President Technology | 324

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Bente Skogen | Vice President People & Organization | 649

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Else-Karin Vådeland | Vice President HSSEQ & Sustainability | 649

The shares were purchased at a price of NOK 73.8866 per share, representing a 13% discount to the Company's volume-weighted average purchase price of NOK 84.9271 per share under the share buyback program. The shares are subject to an 18-month lock-up period.

Please refer to the attached notifications for further information.

DISCLOSURE REGULATION

This information is subject to the disclosure requirements pursuant to Section 5-12 of the Norwegian Securities Trading Act.

CONTACTS

* Jan Erik Tveteraas, CEO, Soiltech ASA

* Tove Vestlie, CFO / Investor Relations, Soiltech ASA,

tove.vestlie@soiltech.no

ABOUT SOILTECH ASA

Soiltech is an innovative technology company specializing in the treatment, recycling and sustainable handling of contaminated water and solid waste on site. Our technologies enable cost savings and lower CO2 emissions through waste reduction, waste recovery and reuse. Soiltech operates world-wide and is headquartered in Norway.