Tip-Topmost Quality that Satisfies Customers Altogether The quality charter consists of quality vision and 3 core values. The quality vision ‘The POSCO Quality’ means ‘POSCO is equal to the symbol of quality and pursues tip-topmost quality that satisfies customers altogether’. 3 core values are Customer Inside, Basic Inside, and Synergy Inside, each value has its own codes of conduct the employees have to observe as follows.