The Universal Postal Union is part of the UN.   Certain countries get favorable treatment, based on being designated &quot;transitional&quot; under the current agreements.  China is currently &quot;transitional&quot;.<p>I suppose, technically, it&#x27;s not a subsidy, but it works like one by setting a fixed, unrealistic cap on rates from the receiving country.<p>Does the Washington Post count as credible?<p><a href="https:&#x2F;&#x2F;www.washingtonpost.com&#x2F;news&#x2F;storyline&#x2F;wp&#x2F;2014&#x2F;09&#x2F;12&#x2F;the-postal-service-is-losing-millions-a-year-to-help-you-buy-cheap-stuff-from-china&#x2F;" rel="nofollow">https:&#x2F;&#x2F;www.washingtonpost.com&#x2F;news&#x2F;storyline&#x2F;wp&#x2F;2014&#x2F;09&#x2F;12&#x2F;...</a><p>Edit: I have only anecdotal evidence of the other subsidies I mentioned...the Chinese side ones.  We buy a lot from China.<p>Edit 2: You may also hear people complaining about the special ePacket program that the USPS negotiated.  This is an interesting Inspector General document on whether it was a good idea; <a href="https:&#x2F;&#x2F;www.uspsoig.gov&#x2F;sites&#x2F;default&#x2F;files&#x2F;document-library-files&#x2F;2015&#x2F;ms-ar-14-002.pdf" rel="nofollow">https:&#x2F;&#x2F;www.uspsoig.gov&#x2F;sites&#x2F;default&#x2F;files&#x2F;document-library...</a>