How Does a Second Source Move from Sample to Repeat Purchase?
Quick AnswerA second source typically progresses sequentially through requirement confirmation, fixed mill and batch documentation, A/B testing, customer qualification, trial order, and continuous repeat purchase.
Stage Gates
Identical grade does not waive verification. Confirm the customer’s technical and procurement approvers, sample quantity, test conditions, acceptance criteria, and retest protocol after failure.
Evidence Hierarchy
Differentiate among capability indicators, single-batch COA, consecutive batches, customer lab verification, and commercial purchase records; possessing compounding capability does not equate to having procured a specific raw rubber grade, and a historical customer list does not equate to a current order.