NEWS – Microbio

SEQ_NO	1	Date of announcement	2026/02/24	Time of announcement	19:20:13
Subject	A Phase 1 clinical trial of SNS851, jointly developed by Microbio(Shanghai) and Oneness Biotech, has been approved by Australia HREC and acknowledged by TGA.
Date of events	2026/02/24	To which item it meets	paragraph 53
Statement	Date of occurrence of the event:2026/02/24 Company name:Microbio (Shanghai) Co.,Ltd. Relationship to the Company (please enter “head office” or”subsidiaries”):subsidiary Reciprocal shareholding ratios:NA Cause of occurrence: (1) New drug name or code: SNS851 (2) Indication: A. Treatment for metabolic disorders B. Information Website: https://clinicaltrials.gov/study/NCT07417124 (3) Planned development stages:Phase I clinical trial/ Phase II clinical trial/ Phase III clinical trial/ New Drug Application (4) Current development stage: A. File application/approved/disapproved/Each of clinical trials (includeinterim analysis): A Phase 1 clinical trial of SNS851, an investigational siRNA drug for the treatment of metabolic disorders, has been approved by the Australian Human Research Ethics Committee (HREC) and acknowledged by the Australian Therapeutic Goods Administration (TGA). B. Once disapproved by competent authority or each of clinical trials (include interim analysis) results less than statistically significant sense, the risks and the associated measures the Company may occur:Not applicable C. After obtaining official approval or the results (include interim analysis) of statistically significant sense, the future strategy:\| Not applicable D. Accumulated investment expenditure incurred: No disclosure of investment expenditure at the moment in consideration of future marketing strategies. (5) Upcoming development plan: A. Scheduled completion date: The study is anticipated to be completed in the third quarter of 2026 (Q3 2026). The actual timeline will depend on the progress of the trial and the review of the regulatory agency. B. Estimate responsibilities: SNS851 is developed jointly by Oneness Biotech Co., Ltd. and Microbio (Shanghai) Co., Ltd. (6) Market situation: A. Currently, the leading weight-loss therapies in the market are GLP-1–based drugs, which primarily achieve weight reduction by suppressing appetite. However, these therapies are associated with significant adverse effects, including gastrointestinal discomfort,which may affect long-term treatment adherence in some patients, as well as weight regain after treatment discontinuation and loss of muscle mass. SNS851 is a novel weight-loss drug with a new mechanism of action and does not exert its effects through appetite suppression.Based on animal studies, no muscle loss has been observed with SNS851, and its overall safety profile has been favorable. Preclinical studies indicate that SNS851 promotes fat metabolism, leading to weight reduction, and concurrently improves fatty liver, blood lipid levels, fasting blood glucose, and insulin resistance. Animal studies indicate that combination treatment with SNS851 and GLP-1–based drugs at a 50% reduced GLP-1 dose provides greater efficacy than full-dose GLP-1 monotherapy. Moreover, weight regain following treatment discontinuation was markedly slower in the combination group and was superior to that observed with GLP-1 monotherapy. B .According to statistics from market research institutions, the global obese population has reached approximately 3 billion people, and the annual global weight-loss market is projected to reach USD 100 billion by 2030 Countermeasures: None Any other matters that need to be specified(the information disclosure also meets the requirements of Article 7, subparagraph 9 of the Securities and Exchange Act Enforcement Rules, which brings forth a significant impact on shareholders rights or the price of the securities on public companies.):According to Guidelines by Taipei Exchange on the Material Information Announced by Listed and OTC Companies, new drug development companies shall make public announcement when filing application for a clinical trial to domestic or overseas regulatory authorities, receiving approval or disapproval, obtaining the statistical date of endpoints in each clinical trial (including interim analysis), or receiving approval or disapproval on drug license application.New drug development requires long process, vast investments and with no guarantee in success which may pose investment risks. The investors are advised to exercise caution and conduct thorough evaluation.

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