SHANGHAI, March 31, 2026 /PRNewswire/ -- Xiao-I Corporation (NASDAQ: AIXI), a leading developer of AI solutions, today provides an additional material update on its variable interest entity (VIE)'s ongoing patent infringement lawsuit against Apple Computer Trading (Shanghai) Co., Ltd., Apple Inc., and Apple Computer Trading (Shanghai) Co., Ltd. (collectively, "Apple") (the "Lawsuit"). The Lawsuit centers on allegations that Apple infringed on the VIE's intellectual property rights related to core artificial intelligence technology, with the legal proceedings having advanced through key appellate stages since the Company's last update.

LISHUI, China, March 31, 2026 /PRNewswire/ -- Tantech Holdings Ltd (NASDAQ: TANH) (the "Company"), a high-tech enterprise specializing in producing, researching and developing bamboo charcoal-based products, today announced the pricing and closing of a registered direct offering and concurrent private placement with certain investors. The Company issued Common Shares in a registered direct offering. In a concurrent private placement, the Company also issued to the same investors Series E Common Warrants and Series F Common Warrants. Aggregate gross proceeds to the Company from both transactions were approximately $2.15 million. The transactions closed on March 31, 2026.

Capstone Holding Corp. (NASDAQ: CAPS), a tech-enabled building products distribution platform, today announced that the integration of KLAD Envelope Solutions, its architectural representative business, is expanding the Company’s commercial reach and supporting high-margin sales growth. The integration gives Capstone direct access to commercial customers and is expected to drive proprietary product sales into large-scale projects across multiple geographies.

LONDON, March 31, 2026 /PRNewswire/ -- Virax Biolabs Group Limited (NASDAQ: VRAX) ("Virax" or the "Company") today announced that Virax Biolabs (UK) Limited, its wholly owned subsidiary, has achieved ISO 13485:2016 and ISO 9001:2015 certification for its quality management system. The certifications were issued by LRQA, with an issue date of 18 February 2026 and an expiry date of 17 February 2029.