Marine operators — across commercial vessels and ports, defence and naval, offshore energy and subsea, and aquaculture and coastal infrastructure — share a common constraint: the parts they depend on are hardest to source exactly where they are needed. Remote and offshore sites sit at the end of long, costly freight routes. Harsh conditions drive corrosion, wear and replacement cycles that centralised, long-lead manufacturing is slow to serve. When a vessel or asset is waiting on a component, it is not earning — and in defence contexts, it is not ready. Conventional supply chains concentrate production far from the water, turning every replacement, repair or design change into a logistics problem.