References

Poznań, March 26, 2026

I hereby confirm that WERNER TECHNIK Sp. z o.o., headquartered at ul. Jana Matejki 5 in Mosina, as part of contract DA/21/2025 dated March 25, 2025, performed the service titled “Inspection of ventilation, heating, cooling, water supply, and sewage system equipment installed in the buildings of the Marshal’s Office of the Wielkopolska Region at Al. Niepodległości 34 and ul. Kościuszki 95 in Poznań in 2025” from March 25, 2025 to December 31, 2025, valued at PLN 428,800.00 gross.

Pleszew, March 26, 2026

Werner Technik Sp. z o.o. began executing inspection and maintenance orders at DMG MORI Poland Sp. z o.o. in 2019. The work was carried out professionally and in accordance with the Client’s expectations. The company’s industry expertise is at a high level. All tasks were completed with due diligence, on schedule, and reliably. I recommend Werner Technik Sp. z o.o. as an experienced partner whose cooperation can be relied upon.

I confirm that WERNER TECHNIK Sp. z o.o., headquartered in Mosina at ul. Jana Matejki 5, 62-050 Mosina near Poznań, carries out contracts for maintenance services and repairs of air conditioning, ventilation equipment, and steam humidifiers in the TVP 3 Poznań building at ul. Serafitek 8 in Poznań.

The work was executed professionally and in accordance with the Client’s expectations. The company’s industry expertise is at a high level. All tasks were performed with due diligence, punctually, and reliably. We recommend Werner Technik Sp. z o.o. as an experienced company whose cooperation can be relied upon.

Złotkowo, April 24, 2024

I am pleased to confirm that the project under which WERNER Sp. z o.o., Sp. K., headquartered at ul. Jana Matejki 5 in Mosina, supplied a 230 kW chiller unit and designed and built its installations, was completed reliably and on time. The high dedication of the entire team and excellent communication throughout all stages of the project deserve special note.

March 5, 2026, Inowrocław

I confirm that WERNER TECHNIK Sp. z o.o., headquartered in Mosina, ul. Jana Matejki 5, 62-050 Mosina near Poznań, executes contracts for maintenance services and repairs of chilled water units, hydraulic systems, air conditioning systems, and air handling units located at the Barbara Luijckx facility.

The contract implementation began on April 12, 2022, and continues to this day. Our positive experience working with Werner Technik Sp. z o.o. allows us to recommend this company to other investors.

Puszczykowo, July 17, 2020 Arterie Art Sp. z o.o., ul. Rakoniewicka 23 60-111 Poznań

Arterie Art confirms that Werner Sp. z o.o. Sp. K., headquartered at ul. Jana Matejki 5, 62-050 Mosina, designed, installed, and serviced the cooling system for the MRI scanner located at Prof. S. T. Dąbrowski Hospital in Puszczykowo. Cooperation continues to this day. Installation work was completed on time and reliably, and system maintenance has been exemplary. Over our partnership, completion dates have never been delayed, nor has service failed to arrive on schedule. Our positive experience with Werner Sp. z o.o. Sp. K. allows us to recommend them to other investors.

Tarnowo Podgórne, August 22, 2018. Zeelandia Sp. z o.o., ul. Sowia 6c, 62-080 Tarnowo Podgórne

Werner Sp. z o.o. Sp. K., headquartered at ul. Jana Matejki 5, 62-050 Mosina near Poznań, acts as the service contractor for air conditioning, refrigeration, and ventilation equipment owned by Zeelandia Sp. z o.o. in Tarnowo Podgórne.

We confirm the proper execution of service, inspection, and maintenance work on air conditioning, refrigeration, and ventilation systems under the Service Agreement for the amount of PLN 266,119.60 gross for the period from August 31, 2017 to July 31, 2018.

I am pleased to inform you that Werner Sp. z o.o. Sp. K., headquartered in Mosina at ul. Jana Matejki 5, 62-050 Mosina near Poznań, installed air conditioning and ventilation systems for our company Agrimasz Sp. z o.o., Fiszewo 1, 82-335 Gronowo Elbląskie, Poland.

The project was carried out in Niepruszewo at ul. Świerkowa between February and September 2019, with a value of PLN 328,000.00 net.

Werner Sp. z o.o. Sp. K. executed the work properly and to the Client’s expectations. The entire project ran smoothly, with workmanship of the highest quality. We are happy to state that installation tasks were completed on time with due diligence, and cooperation with company staff has been very successful.

Based on our positive experience with Werner Sp. z o.o. Sp. K., we recommend them as an experienced installation company on whose collaboration you can rely.

Energika, Zasutowo, June 15, 2019

We hereby certify the reliability and commitment of Werner Sp. z o.o. Sp. K., headquartered in Mosina at ul. Jana Matejki 5, in executing air conditioning installations and associated works for our firm Energika M. Szamałek Z. Szamałek Sp. Jawna, located in Zasutowo at ul. Kwiatowa 11.

This project took place in Barlinek between November 2018 and December 2018, valued at PLN 378,330 net.

Werner executed the work properly and in accordance with the Client’s expectations. The entire project proceeded smoothly, with work performed to the highest standard.

I am pleased to confirm that installation work was carried out on time with due diligence, and communication with company personnel went smoothly. I recommend Werner Sp. z o.o. Sp. K. as an experienced installation partner whose collaboration you can count on.

Pleszew, March 9, 2020

Werner Sp. z o.o. Sp. K. has been collaborating with our plant FAMOT Pleszew Sp. z o.o. since 2019.

We wish to express our satisfaction with the high quality of work carried out by Werner Sp. z o.o. Sp. K. The company executes its services with special care and diligence. Commissioned tasks are completed on time, thoroughly, and without reservations.

Project oversight is handled with complete commitment, and our suggestions are integrated on an ongoing basis. Werner Sp. z o.o. Sp. K. displays great operational flexibility and responsiveness to client needs. Their technical advice on project execution is reliable, and their staff is friendly and competent.

FAMOT Pleszew Sp. z o.o. confirms that Werner Sp. z o.o. Sp. K. performed chilled water system installation work, including chiller unit assembly, at our facility in Pleszew at ul. Fabryczna 7 between November 1, 2019 and March 9, 2020. Total remuneration amounted to PLN 600,732.00 gross. Installation work was delivered on time and reliably.

Given our ongoing partnership, we consider Werner Sp. z o.o. Sp. K. a professional, trustworthy business partner.

Poznań, September 5, 2016

With great satisfaction, I confirm that “WERNER Chłodnictwo i Klimatyzacja” completed the ventilation and Toshiba VRF air conditioning installation with a total cooling capacity of 180 kW and total heating capacity of 200 kW for our company H3M Sp. z o.o., in the newly constructed “Quartz Office” building at ul. Klinkierowa 7 in Poznań. The project value exceeded PLN 700 thousand net.

The work was completed professionally and in full compliance with our expectations. Installation tasks were carried out with due diligence. The company also handles routine maintenance inspections for all installations in a timely and reliable manner.

Our positive experience working with “WERNER Chłodnictwo i Klimatyzacja” allows us to confidently recommend them to other investors.

Poznań, January 23, 2020

Inchcape Motor Polska Sp. z o.o. confirms that Werner Sp. z o.o. Sp. K., headquartered at ul. Jana Matejki 5 in Mosina, modernized the air conditioning system at the BMW Inchcape Poznań facility located at ul. Wschodnia 9 in Swadzim.

The scope of work included:

• Delivery of equipment,
• Replacement of 1 existing AC unit with a new one,
• Installation of the outdoor unit,
• Refrigerant line installation,
• Control system wiring connection,
• Equipment commissioning,
• System programming and regulation,
• Operating parameter testing and verification,
• Roof penetration execution,
• Extension of the mounting frame for the outdoor unit.

The project was completed on October 2, 2019, with a total value of PLN 73,726.51 gross. The work was carried out professionally and fully to our expectations, with great precision and care.

The contractor displays high industry expertise. Our positive experience working with Werner Sp. z o.o. Sp. K. allows us to recommend them to other investors.

Tarnowo Podgórne, July 22, 2019

I hereby certify that WERNER Sp. z o.o. Sp. K., headquartered in Mosina at ul. Jana Matejki 5, completed mechanical ventilation and air conditioning installations in the office section of the XXL Famot hall in Pleszew.
Execution period: October 2018 to April 2019.
Value of completed work: PLN 1,191,600.00 net.
I confirm that work was completed properly and on schedule.

We hereby certify the reliability and dedication of Werner Sp. z o.o. Sp. K., headquartered in Mosina, ul. Jana Matejki 5, 62-050 Mosina, in executing air conditioning, ventilation, and VRF heating systems alongside supporting works for our firm PHP Jaxa-Pol Sp. z o.o., located in Poznań at ul. Chemiczna 3, 61-013 Poznań.

This project took place in Poznań between June 2018 and August 2019, with a value exceeding PLN 1,400,000.00 net.

Werner executed the specified work properly and to the Client’s expectations. The entire project proceeded smoothly, with work performed at the highest level of quality.

It is our pleasure to state that installation works were completed on time with due diligence, and cooperation with company personnel went smoothly. We recommend Werner Sp. z o.o. Sp. K. as an experienced installation partner whose collaboration you can count on.

Tarnowo Podgórne, July 22, 2019

I hereby certify that WERNER Sp. z o.o. Sp. K., headquartered in Mosina at ul. Jana Matejki 5, completed mechanical ventilation and air conditioning installations in the Famot assembly hall in Pleszew.

Execution period: October 2017 to May 2018.

Value of completed work: PLN 1,119,600.00 net.

I confirm that the work was completed properly and on schedule.

We hereby certify the reliability and dedication of Werner Sp. z o.o. Sp. K., headquartered in Mosina at ul. Jana Matejki 5, 62-050 Mosina, in executing ventilation system installations and related work for our firm Mondelez Polska Production Sp. z o.o., Chocolate Factory in Jankowice at ul. Poznańska 50, 62-080 Tarnowo Podgórne.
Scope of work performed:
Mechanical supply ventilation installation with a capacity of 6,500 m3/h,
Chiller unit relocation,
Exhaust fan installation.
This project took place between March 2018 and August 2018, with a total value of PLN 149,000.00 net.
Werner executed the specified tasks properly and to the Client’s expectations. The entire project ran smoothly, with quality of work delivered to the highest standard.
I am pleased to confirm that installation works were completed punctually with due care, and cooperation with company personnel was smooth.
I recommend Werner Sp. z o.o. Sp. K. as an experienced installation partner whose collaboration you can count on.

Poznań, February 10, 2020

We hereby confirm that WERNER Sp. z o.o. Sp. K., headquartered at 62-050 Mosina, ul. Matejki 5, performed service work on our behalf covering:

Delivery of a new AC unit, its installation, and removal and disposal of the old unit in the kitchen of Rycerska Restaurant at Camping Malta in Poznań, ul. Krańcowa 98. Service value was set at PLN 16,875.60 gross, according to contract DT.210.2.2019 signed on September 30, 2019.

The service was executed properly and carefully. All associated work was completed in line with trade and construction standards.

Czerwonak, September 25, 2018

I am pleased to inform you that Werner Sp. z o.o. Sp. K., headquartered in Mosina, ul. Jana Matejki 5, 62-050 Mosina near Poznań, installed air conditioning and ventilation systems for the VOX Group (Profile Vox Sp. z o.o. Sp. K. and Services Vox Sp. z o.o. Sp. K.), 62-004 Czerwonak, ul. Gostyńska 143.

Cooperation began on July 11, 2018, and continues to this day, as completed projects were delivered professionally and in full alignment with our expectations. Installation work was carried out with proper care.

The value of past investments exceeds PLN 47,000.00 net.

In business, nothing matters more than meeting deadlines—something Werner understands perfectly. Over our collaboration, completion dates have never been delayed. All completed investments were delivered on time and thoroughly.

The contractor’s industry expertise is at a high level. Our positive experience working with Werner Sp. z o.o. Sp. K. allows us to recommend them to other investors.

Poznań, May 4, 2020

Silvan Warehousing Sp. z o.o. Sp. K. certifies that Werner Sp. z o.o. Sp. K., headquartered at ul. Jana Matejki 5, 62-050 Mosina, performed the delivery and installation of refrigeration equipment along with piping systems at our food product warehouse located at ul. Drukarska 59 in Koninko.
Silvan Warehousing Sp. z o.o. Sp. K. confirms that Werner Sp. z o.o. Sp. K. properly carried out refrigeration supply and installation work between May 5, 2019 and March 5, 2020, totaling PLN 734,590.44 GROSS. Work was executed on time and reliably.

Our positive experience working with Werner Sp. z o.o. Sp. K. allows us to recommend them to other investors.

Poznań, February 3, 2020

Transgourmet Sp. z o.o. confirms that Werner Sp. z o.o. Sp. K., headquartered at ul. Jana Matejki 5, 62-050 Mosina, performed installation and modernization work on the chilled water piping system located at ul. Zamenhofa 133 in Poznań.

Cooperation continues to this day. Modernization and installation works were completed on schedule and reliably. Throughout our relationship, project completion dates have never been delayed.

Poznań, September 21, 2020

We certify that WERNER Sp. z o.o. Sp. K. (ul. Jana Matejki 5, 62-050 Mosina) delivered, mounted, configured, and installed equipment (air conditioning in technical rooms) and conducted operational training for the Karol Libelt Catering School Complex in Poznań, under the project “Equipping educational institutions with modern and highly specialized technological equipment in the Poznań Metropolitan Area,” according to contract KPRM-II.042.4.4.2020 signed on May 11, 2020.

Total order value was PLN 135,951.90 gross.

WERNER Sp. z o.o. Sp. K. executed the order with due diligence, professionalism, and without delays.

Puszczykowo, February 24, 2021

The Principal of Wielkopolska Insurgents Primary School No. 2 certifies that WERNER Sp. z o.o. Sp. K. (ul. Jana Matejki 5, 62-050 Mosina) delivered, installed, connected, and commissioned air conditioning units and conducted operational training for Primary School No. 2 in Puszczykowo, pursuant to AC Installation Contract No. 10 dated December 7, 2020. Execution took place between December 7, 2020 and December 23, 2020.

WERNER Sp. z o.o. Sp. K. executed the contract with due care, professionalism, and without delays.

School Principal

Beata Cierzniak, M.A.

Poznań, January 23, 2020

Inchcape Motor Polska Sp. z o.o. confirms that Werner Sp. z o.o. Sp. K., headquartered at ul. Jana Matejki 5 in Mosina, acts as the service provider for air conditioning units, ventilation systems, and air handling units in the dealership showroom and body shop buildings owned by BMW Inchcape Poznań at ul. Wschodnia in Swadzim.
Cooperation began on December 12, 2018, and continues to this day. Remuneration for service inspections of equipment installed at the Swadzim facility totaled PLN 57,318.00 gross as of January 23, 2020.
Maintenance inspections and modernization works were carried out on time and reliably. Over our partnership, completion dates have never been delayed.
Our positive experience working with Werner Sp. z o.o. Sp. K. allows us to recommend them to other investors.

Poznań, July 17, 2020

We hereby certify the reliability and dedication of Werner Sp. z o.o. Sp. K., headquartered in Mosina, ul. Jana Matejki 5, 62-050 Mosina, in carrying out inspections, servicing, and maintenance of LG Multi V Water IV air conditioning units for Auto Handel Centrum Grupa Cichy Sp. J., headquartered at ul. Skórzewska 8, 62-081 Wysogotowo.

This service work took place in Poznań at ul. Jadwigi Wajsówny 7, 60-002, between February 1, 2020 and February 29, 2020, with a value of PLN 32,500.00 gross.

Werner executed the specified tasks properly and in accordance with the Client’s expectations. The entire project proceeded smoothly, with work performed to the highest standard.

I am pleased to state that service and maintenance work was conducted with due diligence, and cooperation with company personnel went smoothly.

I recommend Werner Sp. z o.o. Sp. K. as an experienced service partner whose collaboration you can rely on.

Poznań, November 4, 2020

We hereby recommend the services of Werner Sp. z o.o. Sp. k., headquartered in Mosina at ul. Jana Matejki 5, for performing inspections and maintenance on air conditioning units in medical facilities, including the chilled water plant serving operating rooms.

Inspections and service works were carried out with due diligence and without reservations on our part. We are fully satisfied with the quality, execution methods, and personnel directly assigned to the order.

President of the Board

“District Hospital in Września” Sp. z o.o.

Zbigniew Nupała

Tarnowo Podgórne, August 22, 2018

Werner Sp. z o.o. Sp. K., headquartered at ul. Jana Matejki 5, 62-050 Mosina near Poznań, acts as the service provider for air conditioning, refrigeration, and ventilation equipment owned by Zeelandia Sp. z o.o. in Tarnowo Podgórne.

We confirm the proper execution of service, inspection, and maintenance tasks for air conditioning, refrigeration, and ventilation equipment in accordance with the Service Agreement for PLN 266,119.60 gross from August 31, 2017 to July 31, 2018.

Czerwonak, January 13, 2020

I am pleased to inform you that Werner Sp. z o.o. Sp. K., headquartered in Mosina, ul. Jana Matejki 5, 62-050 Mosina near Poznań, acts as the service provider for air conditioning, refrigeration, and ventilation units owned by the VOX Group (Profile Vox Sp. z o.o. Sp. K. and Services VOX Sp. z o.o. Sp. K.) located at ul. Gdyńska 143, 60-005 Czerwonak.
Under our ongoing cooperation, the company performed:

• Air conditioning equipment inspection,
• Air conditioning equipment maintenance,
• Ventilation equipment inspection,
• Ventilation equipment maintenance,
• Modernization of existing exhaust ventilation systems.

Cooperation began on March 23, 2018, and continues to this day. The value of past investments up to December 31, 2019 amounted to PLN 255,993.55 gross. Installations were executed professionally and fully to our expectations. The company’s industry expertise is at a high level. Project implementations were completed with due diligence. Maintenance inspections and modernizations were delivered punctually and reliably. Over our working history, completion dates have never been delayed.
Our positive experience working with Werner Sp. z o.o. Sp. K. allows us to recommend them to other investors.

Poznań, January 10, 2019

Werner Sp. z o.o. Sp. K., headquartered at ul. Jana Matejki 5, 60-050 Mosina near Poznań, serves as the service contractor for air conditioning, refrigeration, and ventilation equipment for Wielkopolska Gildia Rolno-Ogrodnicza S.A. in Poznań.
We confirm the proper execution of service, inspection, and maintenance tasks for air conditioning, refrigeration, and ventilation units in accordance with the Service Agreement for PLN 216,133.07 gross from July 10, 2018 to December 31, 2019.
These references are issued at the request of and for Werner Sp. z o.o. Sp. K.

Poznań, March 1, 2019

Greater Poland Cancer Centre, headquartered in Poznań at ul. Garbary 15, confirms that WERNER Sp. z o.o. Sp. K., headquartered in Mosina at ul. Jana Matejki 5 (62-050 Mosina), provides services for the Greater Poland Cancer Centre consisting of maintenance inspections of VRF air conditioning systems, split and multi-split units, precision air conditioning cabinets, chilled water units, and roof and duct fans. Services are rendered pursuant to Contract No. 57/2018, concluded on June 26, 2018 under Article 39 of the Public Procurement Law.

Additionally, equipment repair services are provided upon malfunction.

The cost for a single overall maintenance inspection of all equipment installed at the Centre is PLN 59,150.70 gross. The above amount does not include equipment repair costs, which are billed separately based on individual work orders.

The contract scope is executed with due care, punctually, and in line with contractual terms, without reservations on our part.

This statement is issued at the Contractor’s request.