Kim's note extended "sincere congratulations" to the Chinese president, who was formally given a second term as the head of the ruling party, state-run KCNA said today.
The message, sent Wednesday, also "expressed conviction that the relations between the two parties and the two countries would develop in the interests of the peoples of the two countries," KCNA said.
But the brief, four-sentence missive was a notable contrast to the fulsome terms in which Kim praised the Chinese leader and his country when Xi ascended to power five years ago.
In 2012 Kim described the two nations as "friendly neighbours linked by the same mountain and rivers" and bilateral ties as the "common precious wealth associated with the wisdom and efforts of the leaders of the elder generations".
Beijing has been reluctant to slap sanctions harsh enough to rattle the North's political status quo over fears that its collapse could send an influx of refugees across their shared border and place the US army at China's doorstep.
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