Dear Valued Customers, We would like to express our sincere gratitude for your continued support. Starting from November 9, 2026 (Monday), our Osaka sales office will be relocating to the address below in order to strengthen our business structure and enhance our work environment. New Address: 10F Wakatsuki Center Building Main, 2-9-1 Higashitenma, Kita-ku, Osaka 530-0044 Phone Number: 06-6809-6565 (no change) FAX: 06-6809-6566 (no change) We sincerely appreciate your support thus far. We will continue to strive for even better service, and we kindly ask for your continued support and patronage. Techne Measurement Co., Ltd. President and CEO Toshikuni Nagatani

Tekune Measurement aims to provide solutions to customers through the sale of measuring instruments such as dew point meters, contributing to the realization of technological innovation. Additionally, we have set the contribution to the global environment as part of our management philosophy. Although our efforts may be small, we would like to report that we have conducted a local cleanup activity. This is the 11th time we have done so. ◆ Date of implementation: October 19, 2026 (Monday) ◆ Location: Near the Tekune Measurement headquarters (mainly along Fuchu Road)

Our company is implementing "Premium Friday" as part of our efforts to promote interaction among employees and create a more comfortable workplace. The event takes place on the fourth Friday of every month starting at 4:00 PM. On that day, employees will be participating in events, so responses to phone calls and emails may take longer than usual after 4:00 PM. We apologize for any inconvenience this may cause our customers and business partners, and we appreciate your understanding. Additionally, customers and business partners who have been supporting us are also welcome to participate in Premium Friday. If you wish to join, please feel free to contact your sales representative. Please note that due to venue and planning constraints, there may be a limit on the number of participants. If we reach capacity, we may close registration, so we appreciate your understanding in advance. We will continue to deepen the interaction between our employees and customers while striving to build better relationships.

Thank you very much for your continued support. We sincerely apologize for the inconvenience, but we will be closed during the following period. Summer Vacation Period From Saturday, August 8, 2026, to Sunday, August 16, 2025. *Inquiries received during the closure will be addressed sequentially starting from August 17, 2025. We apologize for any inconvenience this may cause and appreciate your understanding.

Tekune Measurement aims to provide solutions to customers through the sale of measurement instruments such as dew point meters, contributing to the realization of technological innovation. As a result, we also uphold our management philosophy of contributing to the global environment. Although our efforts may be small, we would like to report that we have conducted a local cleanup activity. This marks our 10th time. ◆Date of implementation: Tuesday, May 26, 2026 ◆Location: Near the Tekune Measurement headquarters (mainly along Fuchu Avenue)

We sincerely apologize for the inconvenience, but we will be closed from Saturday, May 2, 2026, to Sunday, May 10, 2026, for Golden Week.

We sincerely apologize for the inconvenience, but we will be closed on February 13, 2026 (Friday) due to a company trip.

Thank you very much for your continued support. We sincerely apologize for the inconvenience, but we will be closed during the following period. Summer holiday period: From Saturday, December 27, 2025, to Sunday, January 4, 2026. *Inquiries received during the holiday period will be addressed sequentially starting from January 5, 2026. We apologize for any inconvenience this may cause and appreciate your understanding.

Tekune Measurement aims to provide solutions to customers through the sale of measuring instruments such as dew point meters, contributing to the realization of technological innovation. Additionally, as a result, we also uphold the contribution to the global environment as part of our management philosophy. Although our efforts may be modest, we would like to report that we have conducted a local cleanup activity. This marks the ninth time we have done so. ◆ Date of implementation: October 20, 2025 (Monday) ◆ Location: Near the Tekune Measurement headquarters (primarily along Fuchu Kaido)

Thank you very much for your continued support. We sincerely apologize for the inconvenience, but we will be closed during the following period. Summer Vacation Period From Saturday, August 9, 2025, to Sunday, August 17, 2025. *Inquiries received during the closure will be addressed sequentially starting from August 18, 2025. We apologize for any inconvenience this may cause and appreciate your understanding.

Tekune Measurement aims to provide solutions to customers through the sale of measuring instruments such as dew point meters, contributing to the realization of technological innovation. As a result, we also uphold our management philosophy of contributing to the global environment. Although our efforts may be small, we would like to report that we have conducted a local cleaning activity. This marks the eighth time we have done so. ◆ Date of implementation: May 23, 2025 (Friday) ◆ Location: Near the Tekune Measurement headquarters (mainly along the Nikaryo waterway)

[WEB Information] We have renewed the English version of Tekhne Measurement's website! https://www.tekhne.co.jp/en/ Please take a look.

We would like to express our sincere gratitude for your continued support. We regret to inform you that we will be closed during the following period: Golden Week Holiday Period From April 26 (Saturday) to April 29 (Tuesday), and from May 3 (Saturday) to May 6 (Tuesday), 2025. *Inquiries received during the closure will be addressed sequentially starting from May 7, 2025. We apologize for any inconvenience this may cause and appreciate your understanding.

We sincerely apologize for the inconvenience, but due to an internal event, we will suspend some operations on January 17, 2025 (Friday). Shipments will continue as usual.

Thank you very much for your continued support. We sincerely apologize for the inconvenience, but we will be closed during the following period. Summer Holiday Period: From Saturday, December 28, 2024, to Sunday, January 5, 2025. *Inquiries received during the holiday period will be addressed sequentially starting from January 6, 2025. We apologize for any inconvenience this may cause and appreciate your understanding.

Dear Valued Customers, As of November 1, 2024, our Fukuoka Sales Office has expanded to four times its previous size to further advance our business and operations. New Address: A.R.K Building 201A, 2-17-5 Hakataekihigashi, Hakata Ward, Fukuoka City, Fukuoka Prefecture Phone Number: 092-477-7330 (no change) We aim to continue providing solutions for managing moisture in gases, contributing to the global environment and society. Our measuring instruments will enhance production efficiency in manufacturing sites and contribute to more environmentally friendly manufacturing practices. We appreciate your continued support.

Tekune Measurement aims to provide solutions to our customers through the sale of measuring instruments such as dew point meters, contributing to the realization of technological innovation. As a result, we also uphold our management philosophy of contributing to the global environment. Although our efforts may be small, we would like to report that we conducted a local cleanup activity. This marks our eighth time. ◆ Date of implementation: October 21, 2024 (Monday) ◆ Location: Near the Tekune Measurement headquarters (primarily along the Fuchu Highway)

Thank you very much for your continued support. We sincerely apologize for the inconvenience, but we will be closed during the following period. Summer Holiday Period From Saturday, August 10, 2024, to Sunday, August 18, 2024. *Inquiries received during the closure will be addressed sequentially starting from August 19, 2024. We apologize for any inconvenience this may cause and appreciate your understanding.

Tekune Measurement aims to provide solutions to customers through the sale of measuring instruments such as dew point meters, contributing to the realization of technological innovation. Additionally, as a result, we have set the contribution to the global environment as part of our management philosophy. Although our efforts may be small, we would like to report that we have conducted a local cleanup activity. This is the seventh time we have done so. ◆ Date of implementation: May 21, 2024 (Tuesday) ◆ Location: Near the Tekune Measurement headquarters (mainly along the Nikaryo waterway)

Thank you very much for your continued support. We sincerely apologize for the inconvenience, but we will be closed during the following period. Golden Week Holiday Period From Saturday, April 27, 2024, to Monday, May 6, 2024. *Inquiries received during the closure will be addressed sequentially starting from May 7, 2024. We apologize for any inconvenience this may cause and appreciate your understanding.

As of December 1, 2023, we have expanded and renovated the calibration room at the Tekune Measurement headquarters and have begun operations. Additionally, we have been conducting our control panel business at the Shimono-gae factory, but we have now integrated the manufacturing of dew point meters and started operations. Since we cannot show you many photos of the calibration room, we look forward to your visit. We aim to contribute to the global environment and society by providing solutions for moisture management in gases to our customers. Our measuring instruments will enhance production efficiency in manufacturing sites and contribute to more environmentally friendly production. We appreciate your continued support.

Thank you very much for your continued support. We sincerely apologize for the inconvenience, but we will be closed during the following period. Summer Holiday Period: From Friday, December 29, 2023, to Thursday, January 4, 2024. *Regarding inquiries made during the closure, we will respond sequentially starting from January 5, 2024. We apologize for any inconvenience this may cause and appreciate your understanding.

Techne Measurement Co., Ltd. will celebrate its 45th anniversary on November 20, 2023. We received a letter of appreciation from Ms. Yuriko Koike (Chairperson of the Tokyo Branch of the Japanese Red Cross) in honor of our 45th anniversary. Techne Measurement Co., Ltd. has the management philosophy of "realizing the happiness of society, customers, employees, and shareholders." As part of our social contribution efforts, we received a "letter of appreciation" for our donation activities to the Japanese Red Cross for the fiscal year 2023. We will continue to strive, albeit modestly, to contribute to society.

At Techne Measurement, we conduct fire prevention and disaster prevention training twice a year. This time, as a special training session, we collaborated with the Tokyo branch of the Japanese Red Cross to hold a lifesaving training course on November 13, 2023. During the training session, we learned about lifesaving procedures (CPR and how to use an AED) to prevent cardiac arrest until the emergency team arrives. All participants practiced using training mannequins and AEDs. Our company has installed AEDs in each building of our headquarters and Osaka office, so please let us know in case of an emergency.

Tekune Measurement aims to provide solutions to customers through the sale of measuring instruments such as dew point meters, contributing to the realization of technological innovation. As a result, we also uphold our management philosophy of contributing to the global environment. Although our efforts may be modest, we would like to report that we conducted a local cleanup activity. This marks our sixth time. ◆ Date of implementation: October 16, 2023 (Monday) ◆ Location: Near the Tekune Measurement headquarters (mainly along the Nikaryo waterway)

Dear Customers, As of September 1, 2023, the headquarters and technical center of Techne Measurement have expanded to 2.5 times their previous size to further advance and develop our business. Until now, we have been conducting our control panel business at the Shimono Factory, but by integrating the manufacturing of dew point meters and consolidating our operations, we expect to enhance convenience and improve efficiency. We aim to continue providing solutions for moisture management in gases to contribute to the global environment and society. Our measuring instruments will enhance production efficiency in manufacturing sites and contribute to more environmentally friendly manufacturing practices. We appreciate your continued support.

Notice of Shipping Operations Suspension Due to Headquarters/Technical Center Expansion Dear Customers, We sincerely apologize for the inconvenience, but due to the expansion of our headquarters/technical center, shipping operations will be suspended, and there may be delays in responding to some inquiries. We appreciate your understanding and cooperation during this time. Suspension Period: August 24, 2023 (Friday) to August 28, 2023 (Monday)

Thank you very much for your continued support. We sincerely apologize for the inconvenience, but we will be closed during the following period. Summer Vacation Period From Friday, August 11, 2023, to Wednesday, August 16, 2023. *Inquiries made during the closure will be addressed sequentially starting from August 17, 2023. We apologize for any inconvenience this may cause and appreciate your understanding.

Tekune Measurement aims to provide solutions to customers through the sale of measuring instruments such as dew point meters, contributing to the realization of technological innovation. As a result, we also uphold our management philosophy of contributing to the global environment. Although our efforts may be modest, we would like to report that we conducted a local cleanup activity. This marks our sixth time. ◆ Date of implementation: June 20, 2023 (Tuesday) ◆ Location: Near the Tekune Measurement headquarters (mainly along the Nikaryo waterway and Fuchu Highway)

Tekune Measurement aims to provide solutions to our customers through the sale of measuring instruments such as dew point meters, contributing to the realization of technological innovation. As a result, we also uphold our management philosophy of contributing to the global environment. Although our efforts may be modest, we would like to report that we conducted a local cleanup activity. This marks our fifth time. ◆ Date of implementation: May 22, 2023 (Monday) ◆ Location: Near the Tekune Measurement headquarters (mainly along the Nikaryo waterway)