Certificate No. EI-0279 for the installation of energy facilities was issued by Decision No. SA-4791 of the National Energy Regulatory Council dated 14 July 2025.
Certificate No. E-0930 for the operation of energy facilities was issued by Decision No. SA-4790 of the National Energy Regulatory Council dated 14 July 2025.
Tetas holds Qualification Certificate No. 4219 issued by the Construction Sector Development Agency, which authorises the company to carry out the construction of special-purpose structures.
The Lithuanian Accreditation and Standardisation Agency, by accreditation certificate No. LA.167-06, grants Tetas the right to carry out metrological verification of current, voltage and combined measurement transformers.
