Open-ended price increases
Look for how and when the supplier can raise prices. 'Prices subject to change' or an uncapped annual increase lets costs climb once you depend on them and have re-tooled around their product. The switching cost is what makes this clause expensive.
Ask for: Ask to fix prices for the term, cap any increase (for example to an index like CPI), and require written notice well before any change takes effect.
Vague delivery and lead times
A promise to deliver 'within a reasonable time' is no promise at all. Without firm lead times, delivery windows, and a remedy for lateness, a supplier's delay becomes your production stoppage with no recourse.
Ask for: Ask for committed lead times, a defined delivery schedule, and a remedy for late delivery (credits, the right to cover-purchase elsewhere, or termination for repeated failures).
Weak quality, inspection, and acceptance terms
Check your right to inspect and reject defective goods, and how long you have to do it. A short acceptance window or a clause deeming goods accepted on delivery can leave you paying for defects you only discover in use.
Ask for: Ask for a clear inspection period, a right to reject non-conforming goods, a warranty against defects, and who pays return freight on rejected goods.
Minimum purchase commitments and exclusivity
Watch for take-or-pay minimums (you pay whether or not you order) and exclusivity that bars you from buying elsewhere. Either can lock you into one supplier and one price even as your needs or the market change.
Ask for: Ask to remove or right-size any minimum, and to make exclusivity mutual or drop it, so you keep the freedom to source elsewhere.
Lopsided liability and no recall protection
Suppliers often cap their liability at the price of the goods and disclaim everything else, including consequential losses and the cost of a recall if their product is defective. For anything that goes into your product or premises, that can leave you carrying the real risk.
Ask for: Ask for an indemnity covering defective goods and IP infringement, a liability cap that reflects the real exposure, and recall cost-sharing where relevant.
Auto-renewal and hard exit terms
Look at the term, renewal, and termination. Auto-renewal with a long notice period, or the right for the supplier to terminate on short notice while you are locked in, leaves you exposed if the relationship sours or a better supplier appears.
Ask for: Ask for a clear termination-for-convenience right, symmetric notice periods, and a defined wind-down so supply does not stop overnight.