Business
Litigation update
Nanoco Group PLC has filed counterclaims against Shoei Chemical Inc. and Shoei Electronic Materials, Inc. in the US District Court for the Eastern District of Virginia, seeking damages for infringement of its intellectual property, specifically U.S. Patent Nos. 7,588,828, 7,803,423, 7,867,557, and 8,524,365. This action follows Shoei's earlier declaratory judgment filing claiming non-infringement. Nanoco has retained Caldwell, Cassady and Curry to represent it in this litigation, which is expected to go to trial in 2026 and is being funded by existing cash reserves, though success and damages are not guaranteed. Disclaimer*
About this update from Nanoco Group Plc
[{"type":"text","content":"\n\nFOR IMMEDIATE RELEASE 12 January 2026\n \nTHIS ANNOUNCEMENT CONTAINS INSIDE INFORMATION FOR THE PURPOSES OF ARTICLE 7 OF THE MARKET ABUSE REGULATION (596/2014/EU) AS THE SAME HAS BEEN RETAINED IN UK LAW AS AMENDED BY THE MARKET ABUSE (AMENDMENT) (EU EXIT) REGULATIONS (SI 2019/310) (\"UK MAR\").\nNanoco Group PLC\n(\"Nanoco\", the \"Group\", or the \"Company\")\n \nLitigation update\n \nNanoco seeks damages for infringement of IP by Shoei\n \nNanoco Group plc (LSE: NANO), a world leader in the development and manufacture of cadmium-free quantum dots and other specific nanomaterials emanating from its technology platform has filed an answer and counterclaims to the complaint for declaratory judgement originally filed by Shoei Chemical Inc. and Shoei Electronic Materials, Inc. (together, \"Shoei\") in the US District Court for the Eastern District of Virginia.\nAs detailed in the Group announcement on 27 November 2025, Shoei filed a declaratory judgement action claiming it is not infringing a number of Nanoco's patents.\nSubsequently, the Board has evaluated next steps with legal counsel and concluded that it has a number of counterclaims against Shoei for infringement of Nanoco's intellectual property. As part of the counterclaims, Nanoco seeks damages for infringement of U.S. Patent No. 7,588,828, US Patent No. 7,803,423, US Patent No. 7,867,557 and US Patent No. 8,524,365.\nShoei acquired substantially all of the assets from Nanosys, Inc. (\"Nanosys\"), another manufacturer of quantum dots, for an undisclosed sum in September 2023. Shoei is a supplier of quantum dots to a number of globally significant technology companies. At this sta...