Leaguer (Shenzhen) Microelectronics Corp(688589) : Leaguer (Shenzhen) Microelectronics Corp(688589) investor relations activity record (2021 annual performance briefing)

Securities code: Leaguer (Shenzhen) Microelectronics Corp(688589) securities abbreviation: Leaguer (Shenzhen) Microelectronics Corp(688589)

Leaguer (Shenzhen) Microelectronics Corp(688589)

Record of investor relations activities

No.: 2022005

□ specific object research □ analyst meeting

□ media interview ■ performance briefing

Investor relations activities

□ press conference □ Roadshow

other

□ site visit □ teleconference

□ others (please specify other activities in words)

Name and person of the participant: Investors Participating in the 2021 annual performance briefing of the company’s members through the online interactive platform of Shanghai Stock Exchange roadshow Center

Meeting time: 10:00-11:00 am, March 31, 2022

Shanghai Stock Exchange Shanghai Securities roadshow Center

Meeting place

(website: http://roadshow.sseinfo.com./ )

Chairman: he Zhen

Vice chairman and general manager: Liu Kun

Name of receptionist: Secretary of the board of directors: Wu Ying

Financial director: Zhou Shiquan

Independent director: Zhou Shengming

1、 Main contents of the activity

Ms. Wu Ying, deputy general manager and Secretary of the board of directors of the company, and Mr. He Zhen, chairman of the board of directors, made an opening speech and welcomed the majority of investors to participate in the 2021 annual performance briefing of the company. Investor relations activity owner

Mr. Liu Kun, vice chairman and general manager, reported the operating results and main contents of Leaguer (Shenzhen) Microelectronics Corp(688589) 2021

Financial position. Mr. He Zhen, chairman of the company, Mr. Liu Kun, vice chairman and general manager, Ms. Wu Ying, deputy general manager and Secretary of the board of directors, Mr. Zhou Shiquan, chief financial officer and Mr. Zhou Shengming, independent director replied to the majority of investors through online text interaction

Questions raised. 2、 Main questions of online text interactive investors and company replies 1. Will the company’s follow-up R & D investment be further increased?

A: Dear investors, Hello! As an Internet of things communication chip design enterprise and a national specialized and new “little giant” enterprise, the company has long focused on and committed to the research and development of basic technologies and independently controllable core technologies of Internet of things communication and chip design, and pays attention to technological innovation. The company will continue to increase R & D investment and enhance the competitive advantage of core technologies. 2. Is the company’s chip technology in a leading position in the same industry?

A: Dear investors, Hello! As an Internet of things communication chip enterprise, the company has long focused and committed to the research and development of Internet of things communication and chip design basis, independent core technology and underlying algorithm, and paid attention to technological innovation, including physical layer core algorithm, low-power chip design technology, high-end chip process design technology, network layer core technology and application innovation technology, so that the company continues to maintain outstanding technical advantages, Always maintain competitive advantage in market demand changes and technical iterations. The company is in a leading position in the field of power line communication technology and chip in China. 3. Does the company involve overseas business?

A: Dear investors, Hello! The company’s power line communication technology and chip products are suitable for global smart meter applications. The company’s chips and modules are exported overseas through Chinese electricity meters and intelligent control terminal customers. In the overseas meter reading market, the company is based on the market leading PLC chip and complies with the international standard ieee1901 1 one belt, one road line for medium frequency (below 12MHz), which is suitable for smart grid applications, and the overseas meter business enterprises are actively cooperating to extend the technology to the countries that are in the same area. Significant progress has been made in 2021, and successful pilot projects have been carried out in many countries. It is expected to make further breakthroughs in the overseas meter reading market in 2022. 4. What scenarios can the company’s products use now?

A: Dear investors, Hello! The company’s power line communication chip realizes data transmission through the power line, “communication can be achieved with wires”, and provides “last mile” communication connection for a wide range of Internet of things application scenarios, including national smart grid, smart home / whole house smart / smart appliances, new energy intelligent management (such as photovoltaic power generation monitoring), comprehensive energy efficiency management (such as large power users such as high-speed rail and industrial parks) Smart lighting / Internet of things and other applications (e.g. industrial lighting / smart home lighting / street lighting, etc.). 5. Is the module and PA chip sold 1:1?

A: Dear investors, Hello! Power line communication power amplifier (PA) chip is used together with high-speed power line carrier communication chip 1:1. The power line carrier line driven power amplifier chip independently developed by the company is an industry-leading domestic alternative chip. At present, the PA chip developed by the company is not only for its own use, but also for the whole industry. On the basis of stabilizing the supply chain, the company will continue to strengthen the market promotion of power line communication power amplifier (PA) chips to form wider applications and larger domestic substitutes. 6. What are the products provided by the company for the photovoltaic field?

A: Dear investors, Hello! For the photovoltaic field, the company provides power line based communication chips and modules, related terminals and system solutions for photovoltaic modules. Based on PLC, there is no need for wiring, which is easy to implement and meets the needs of the market for smart photovoltaic. 7. What effect can street lamps achieve after adopting PLC technology?

A: Dear investors, Hello! The company’s PLC technology and chip products are applied to Smart City Smart street lamps. Through the existing power line, it provides a two-way communication channel for a single lamp to realize automatic fault alarm, remote control, perceptual information transmission, more real-time and flexible lighting grouping control, dimming control, etc., so as to realize energy efficiency management, energy conservation and power saving, real-time monitoring of feedback voltage or current, status query, etc., so that the street lamps can be illuminated on demand and realize secondary energy saving.

8. In the field of smart home, how can the existing household appliances realize the application of PLC technology?

A: Dear investors, Hello! In the field of smart home / household appliances, the application of PLC technology, on the one hand, can build PLC chips in household appliances. On the other hand, the company also provides solutions including built-in PLC chips in adapters / transformers, sockets, wiring boards and other equipment. Provide data communication interface based on power line for each household appliance.

Annex list (if any) none

Date: March 31, 2022

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