Our representative Tada will be speaking at the MINERVA business plan presentation, which takes place every second Tuesday of the month. MINERVA's goal is to effectively and continuously discover, support and promote R&D venture companies responsible for the revitalization of Kanagawa's economy. [Event overview] ■ Date and time: Tuesday, June 13, 2020, 1:30 p.m.–3:00 p.m. (Presentation from 1:30 p.m. ~ Business card exchange session from approx. 3:00 p.m. for event participants only) ■ Location: YOXO BOX ICON Kannai (1st floor), 1-6 Onoe-cho, Naka-ku, Yokohama, Kanagawa Prefecture (3 minutes walk from Kannai Station on the city subway, 3 minutes walk from JR Kannai Station, 7 minutes walk from Nihon-Odori Station on the Minato Mirai Line) ■ Participation form: Online (live streaming via Zoom for 100 people) On-site participation (will be closed once capacity is reached) ■ Participation fee: Free ■ Cooperation: Independents Club, a designated non-profit organization * Information on the 248th MINERVA business plan presentation https://www.tnp-g.jp/uploads/248thbpannai.pdf

2 We will exhibit at the 28th Mechanical Component Technology Exhibition (M-Tch) to be held at Tokyo Big Sight from Wednesday, June 21 to Friday, June 23 , 2023 . We will demonstrate our autonomous transport robot Mighty at the booth of Mabuchi Motor Co., Ltd. [Exhibition overview] ■Name: Japan Manufacturing World 28th Mechanical Components and Technology Exhibition (M-Tch) ■Period: Wednesday, June 21, 2023 to Friday, June 23, 2023, 10:00 a.m. to 6:00 p.m. (closes at 5:00 p.m. on the last day) ■Venue: Tokyo Big Sight East 7 Hall ■Booth number: 59-1 (at the booth of Mabuchi Motor Co., Ltd.) ■Participation fee: Free ■Exhibition URL: https://www.japan-mfg.jp/ja-jp/about/mtech.html *Click here for tickets▼ If you are interested in our business or our products or have read this article, we look forward to meeting you.

We will exhibit at the “Robotics and Mechatronics Conference 2023 Nagoya” which will be held on 29 (Thursday) and 30 (Friday), 2023 at the Nagoya International Conference Center. In addition to exhibiting a high-torque ultrasonic motor: a piezoelectric ultrasonic motor, our booth will display a 1:4 scale model of the Mighty autonomous transport robot, and our representative Tada will give an explanation. [Event overview] ■ Name: Robotics/Mechatronics Lecture 2023 Nagoya Corporate Exhibition ■ Date: 29 (Thursday) and 30 (Friday) 2023 ■ Venue: Nagoya International Conference Center Event Hall (1-1 Atsuta Nishimachi, Atsuta-ku, Nagoya) ■ Stand number: 23 *Venue website: https://www.nagoya-congress-center.jp/ *Event website: https://robomech.org/2023/ If you are interested in our business or our products or have read this article, we look forward to meeting you.

We will exhibit at the 35th Obihiro International Agricultural Machinery Exhibition 2023 which will be held in Obihiro from Thursday, July 6 to Monday, July 10, 2023. At the booth of Farm Supporters Co., Ltd., we will hold a demonstration and model exhibition of our autonomous transport robot: Mighty. During the event, there will be a Mighty demonstration with commentary from our representative Tada from July 6th (Thursday) to July 8th (Saturday), and there will be a 1:4 scale Mighty demonstration exhibition on July 9th (Sunday) and July 10th (Monday). [Event overview] ■Name: 35th Obihiro International Agricultural Machinery Exhibition 2023 ■Period: Thursday, July 6, 2023 to Monday, July 10, 2023, 9:00 a.m. to 4:00 p.m. (ends at 3:00 p.m. on the last day) ■Venue: Special venue “Kita Aikoku Exchange Plaza” (10-1 Aikokucho, Obihiro, Hokkaido) *There is no parking lot inside the venue. If you are coming by car, please use the temporary parking lot (free of charge). There is also a free shuttle bus service from Obihiro Station to the venue, so please keep that in mind as well. ■Booth number: 96 (at the booth of Farm Supporters Co., Ltd.) ■Participation fee: Free ■Exhibition URL: https://iams-obihiro.com/ If you are interested in our business or our products or have read this article, we look forward to meeting you.

At the “22nd International Federation of Automation Control World Congress” to be held at Pacifico Yokohama from July 9 (Sunday) to July 14 (Friday), 2023, we will hold a demonstration of our autonomous transport robot Mighty at the Kumagai Gumi booth. This will be done indoors. During the event, our engineers will give explanations and demonstrations on July 10 (Monday), July 12 (Wednesday) and July 13 (Thursday). [Event overview] ■Name: 22nd World Conference of the International Federation of Automatic Control ■Period: July 9 (Sunday) to July 14 (Friday) 2023 9:00 a.m.–5:00 p.m. ■Venue: Pacifico Yokohama Exhibition Hall A (1-1-1 Minato Mirai, Nishi-ku, Yokohama, Kanagawa 220-0012) ■Booth number: IF08 (Kumagai-gumi booth) ■Event URL: https://www.ifac2023.org/ This is our first time participating in the competition. Please stop by our stand.

We will exhibit at the “TECHNO-FRONTIER 2023 Motor Technology Exhibition” which will be held at Tokyo Big Sight from Wednesday, July 26 to Friday, July 28, 2023. TECHNO-FRONTIER is intended to be a platform proposing innovations and solutions for the Japanese manufacturing industry, with a focus on engine technology, and will be a hybrid exhibition of real-world and online exhibitions. At our booth we will exhibit a high torque ultrasonic motor: the piezoelectric motor, as well as demonstrate the autonomous transport robot Mighty. [Event overview] ■ Real exhibition ・Name: TECHNO-FRONTIER 2023 41st Motor Technology Exhibition ・Date: July 26 (Wednesday) and July 28 (Friday) 10:00 a.m.–5:00 p.m. ・Venue: Tokyo Big Sight East Hall 1 ・Booth number: 2A-06 ・Participation fee: Free *Visitor registration: https://www.jma-onlineservice.com/7all/jp_tfif/registration.php *Exhibition website: https://www.jma.or.jp/tf/techno/index.html *Our company presentation page https://www.jma-onlineservice.com/7all/webguide_jp_tfif/company.php?no=350 ■The online exhibition will take place from August 1, 2023 (Tuesday) 10:00 a.m. to August 25, 2023 (Friday) 5:00 p.m. * Click here for the URL of the online exhibition If you are interested in our business or our products or have read this article, we look forward to meeting you.

Our company was featured in the electronic version of the Nikkan Kogyo Shimbun on July 27, 2023 (Thursday) in the article “Techno Frontier 2023 kicks off with innovations in elementary technology – preliminary venue report”. The “TECHNO-FRONTIER 2023 41st Motor Technology Exhibition”, which will be held at Tokyo Big Sight from July 26 to 28, is the “only” exhibition in Japan that brings together the latest motor drive technologies for all types of applications. ■Publication medium: Electronic version of Nikkan Kogyo Shimbun ■Article title: “Techno Frontier 2023 opens with innovations in elementary technology – preliminary venue report” ■Article URL: https://www.nikkan.co.jp/articles/view/00679774 ■Video URL: https://www.youtube.com/watch?v=oMQClBUF0r8 Dear Nikkan Kogyo Shimbun, we appreciate your continued support of our company’s activities and products.

Thank you for your continued support. Piezo Sonic Co., Ltd. will be closed for summer vacation on the following days. Summer holiday time Friday, August 11, 2023 – Monday, August 14, 2023 Inquiries received during the closure period will be answered one at a time after August 15 (Tuesday). We apologize for any inconvenience and thank you for your understanding.

The Innovation Ecosystem Study Group is a survey and research group founded in January 2023 by Professor Mitsuhiko Niwata, Associate Professor Miho Nosaka, and two other researchers from the Faculty of Management and Information Studies at Tama University. As small and medium-sized businesses in Ota Ward have changed significantly over the past 20 years, our representative conducted an interview with the aim of clarifying how design-oriented entrepreneurs develop their businesses. He has wonderfully summarized the story from the time before Piezo Sonic was founded until today. I hope you will read it. Click here for the article featuring our company in the Innovation Ecosystem Study Group activity launch. Many thanks to Professor Mitsuhiko Niwata and Associate Professor Miho Nosaka of the Faculty of Management and Information Studies, Tama University, for their wonderful introductory articles. We look forward to your continued support of our activities and products.

Today, our representative Tada will speak at the “New Technology Lecture – Gathering for Industry-Academia/Industry-Industry Collaboration” at the Japan Society for Precision Engineering Fall Conference. This lecture is held to provide opportunities for companies to conduct joint research with research institutions in the field of precision engineering and to conduct business exchanges with related companies. He will receive the Society of Precision Engineering Manufacturing Award at the “New Technology Lecture – A Gathering for Industry-Academia/Industry-Industry Collaboration”, which was created with the aim of supporting small and medium-sized enterprises that support manufacturing in Japan will showcase its award-winning products and technologies. [Event overview] ■ Date and time: Wednesday, September 13, 2023, 4:30 p.m.–6:15 p.m. ■ Venue: Room M of Fukuoka Institute of Technology, Building C 3F (C31) (3-30-1 Wajiro Higashi, Higashi-ku, Fukuoka City) *Since the application deadline has already expired by the time the information is provided, we will not provide any information on applications to participate. Information about the lecture : https://www.jspe.or.jp/wp/wp-content/uploads/activity/sgs_boshu2309.pdf Society for Precision Engineering HP: https://www.jspe.or.jp/

Our representative Tada will be on stage at the Kobe Chamber of Commerce and Industry's DX seminar "The Potential of Service Robots to Revolutionize Businesses" on Monday, September 25, 2023. In the seminar, participants will learn about the possibilities and use of service robots and will want to realize their own DX with service robots based on concrete application examples. [Event overview] ■ Date and time: Monday, September 25, 2023, 2:30 p.m.–5:00 p.m. ■ Seminar name: Kobe Chamber of Commerce and Industry DX Seminar “The potential of service robots to revolutionize business” ■ Holding method: Real-life and online hybrid holding Actual venue: Anchor Kobe (15th floor, Kobe Sannomiya Hankyu Building, 4-2-1 Kano-cho, Chuo-ku, Kobe) ■ Participation fee: Free (50 people on site, no capacity for online) *Click here to apply: https://questant.jp/q/dx230925 * Seminar HP: https://kobe-bizmatch.jp/dx/seminar/58 * Information flyer: https://kobe-bizmatch.jp/dx/content/lapm6M We look forward to your participation.

The Mighty-D3-2, an autonomous mobile transport robot developed by our company, won the Manufacturing Award “Best Award” of the Japan Society for Precision Engineering. The Japan Society for Precision Engineering researches a wide range of topics related to "manufacturing", and explores not only precision processing and precision measurement as traditional production infrastructure technologies, but also new interdisciplinary fields related to information science, quantum science, life science, etc. We handle a wide range of production engineering that is responsible for creating production infrastructure. Researchers and engineers work together to exchange technologies and conduct joint research and development. The Japan Society for Precision Engineering Fall Conference 2023 was held at the Fukuoka Institute of Technology from Wednesday, September 13 to Friday, September 15. On the 13th (Wednesday), our representative Tada gave a presentation at the “New Technology Lecture – Gathering for Industry-Academia/Industry-Industry Collaboration”, and the award ceremony was held on September 14th (Thursday). (Award-winning topic of the New Technology Lecture: “Development of Mighty, a transport AMR with a unique mechanism that can drive on rough terrain”) (Souvenir photo after receiving the award) (Commemorative photo with Precision Engineering Society staff and Kanda Kogyo President Ichiro Takashima) ・List of awards including Society of Precision Engineering Manufacturing Award : https://www.jspe.or.jp/wp/wp-content/uploads/about_us/news/news230914_1.pdf ・Society of Precision Engineering Public Interest Incorporated Association URL: https://www.jspe.or.jp/ We look forward to your continued support of Piezo Sonic and the autonomous transport robot: Mighty.