Are you referring to the USPS’ ePacket service, which subsidizes small packages from Hong Kong and China to the extent that it’s cheaper to ship from there than to ship domestically?

E.g. per [0]:

> As Amazon’s Vice President of Global Policy Paul Misener pointed out:

> “The cost to ship a one-pound package from South Carolina to New York City would run nearly $6; from Beijing to NYC: $3.66.”

> While sending that same one-pound package from New York City back to Beijing via USPS International Mail would cost in the ballpark of $50.

[0] https://www.forbes.com/sites/wadeshepard/2017/11/05/how-the-...