What's with this "His Excellencies" stuff? Is it an obnoxious nickname, or is this backed by some monarch or gulf sovereign wealth fund or something?
It is correct to address him as His Excellency or HE. He also has diplomatic immunity.
... in Switzerland only, in his role as the Permanent Representative of Grenada to the WTO.
He actually doesn't have diplomatic immunity in Grenada, and Grenada maintains an extradition treaty with the United States. [1]
[1] https://protos.com/sun-grenada-his-excellency-justin-crypto-...