Group 1: Investor Relations Activity Overview - The investor relations activity was conducted on June 4, 2025, from 14:00 to 15:00 [2] - The event took place at the headquarters of Yixin Tang Pharmaceutical Group Co., Ltd. [2] - A total of 23 investors participated, including representatives from Zhongtai Securities, CITIC Securities, and Morgan Fund [2] Group 2: Participants and Company Representatives - Company representatives included Ms. Guo Chunli (Director), Mr. Liu Jun (Director of Non-Pharmaceutical Business), and Mr. Xie Jianbing (Deputy General Manager of Yunnan Company) [2] - The event was attended by various analysts and investors from different securities firms [2] Group 3: Activity Type and Content - The activity was categorized as an on-site visit [2] - The main content of the investor relations activity was focused on investor communication [2]

Group 1 - The company will participate in the "2025 Shandong Listed Companies Investor Online Reception Day" to enhance interaction with investors, scheduled for May 15, 2025 [1] - Company executives will discuss the 2024 annual performance, corporate governance, development strategy, operational status, financing plans, equity incentives, and sustainable development during the event [1] Group 2 - The company’s wholly-owned subsidiary, Shandong Mining Huaneng Equipment Manufacturing Co., Ltd., will increase the registered capital of its holding subsidiary, Shandong Chengtong Forging Co., Ltd., from 20 million to 60 million RMB [2] - The capital increase will be proportionate among shareholders, with Huaneng Equipment contributing 31 million RMB, maintaining a 77.5% ownership stake [2] - This capital increase does not constitute a related party transaction or a major asset restructuring as per relevant regulations [2] Group 3 - Shandong Chengtong Forging Co., Ltd. has completed the business registration change and obtained a new business license, with a registered capital of 60 million RMB [4] - The company was established on June 16, 2005, and operates in various sectors including forging processing and manufacturing of coal mine machinery [4] Group 4 - The purpose of the capital increase is to enhance the financial strength and competitiveness of Chengtong Forging, supporting business expansion and aligning with the company's long-term strategic goals [4] - The capital increase will not affect the company's consolidated financial statements or significantly impact its current financial status and operational results [4]