MRO (Maintenance, Repair & Operations)
MRO (Maintenance, Repair and Operations) refers to the goods and supplies used to keep a business's operations and equipment running — as opposed to the raw materials and components that go into the finished product. MRO covers spare parts, tools, lubricants, safety and cleaning supplies, consumables, and general maintenance items.
Though individually small, MRO spend is typically high-volume, fragmented across many low-value items and suppliers, and hard to control — a classic source of maverick and tail spend. Yet it is critical: a missing spare or tool can halt production or a vessel. Managing MRO well means consolidating suppliers, using catalogues and e-procurement, optimising spares inventory (balancing stock-out risk against holding cost), and applying strategic sourcing to a category that is easy to neglect. In asset-heavy operations — manufacturing, and ship management via the PMS and spares requisition process — effective MRO procurement and inventory directly affect uptime and cost. It is a distinct, important procurement category.
MRO is the spend everyone ignores until a missing spare stops a machine or a ship — high-volume, fragmented and leaky, yet critical to uptime. Bringing it under control with catalogues, consolidated suppliers and smart spares inventory turns a classic source of maverick spend into managed cost and reliability. For asset-heavy operations it directly drives availability.
How is MRO different from direct materials?
MRO keeps operations and equipment running (spares, tools, consumables); direct materials go into the finished product.
Why is MRO spend hard to control?
It is high-volume and fragmented across many low-value items and suppliers, making it a common source of maverick and tail spend.