You translate "Guanxi" as "Relationships." But in China, it’s currency.
In the West, business is a contract. In China, business is a favor between friends.
It’s a network of mutual obligation. If I help you, you owe me. If you respect me, I protect you.
Never shout at a supplier or point out their mistakes publicly. You destroy their "face."
If a supplier invites you to dinner, GO. This isn't just food. This is where the real negotiation happens (often after the 3rd toast).
Bring small items from your home country (local chocolates, a keychain, a souvenir). Give it to the owner or the sales rep you click with.
Why bother? Because when peak season hits and the factory is overbooked, the buyer with Guanxi gets their order shipped first. The buyer with just a contract gets delayed.