RedCloud Holdings plc announced it has joined as a co-signatory of the Open Weights Letter, an industry-wide commitment to open-weight AI models convened by Microsoft, NVIDIA and a coalition of leading technology companies. The letter, now closed to further signatories, drew over 270 companies, including Meta, Google, OpenAI, Amazon, IBM, Intel, Databricks, Palantir, Hugging Face and Mistral. RedCloud is not a developer of foundation models; like most signatories, it builds on them. The Company's ability to deliver differentiated intelligence to its customers rests on specialising advanced models on FMCG trading data inside infrastructure it controls. RedCloud believes the movement of goods through global supply chains has long been closed and fragmented, resulting in a global $2Tn annual inventory gap. Its answer is Open Commerce, delivered through RedAI, built on a proprietary Data Foundation of $6.9Bn in FMCG trading data aggregated across categories and countries since 2023. The Company believes general-purpose models have likely never seen the trading behaviour of FMCG markets in Lagos, Istanbul or Delhi. Open-weight models are intended to be specialised on that data directly, through fine-tuning and continued pre-training, carried out inside RedCloud's own environment, so customer trading data need not pass to a third-party provider.