'>Trustworthiness in a supplier is evidenced by their commitment to customer satisfaction, transparent business practices, and robust after-sales support. A trustworthy supplier provides clear communication regarding pricing, delivery schedules, and return policies. Reading customer reviews and testimonials can offer insights into the supplier's reliability. Opt for suppliers who respond promptly to inquiries and resolve issues efficiently. Longevity in the market can also be an indicator of trustworthiness, suggesting sustained customer loyalty and satisfaction.