RUAG Space is the company that manufactures payload fairings for the Ariane, Vega, Atlas V (500 series) and the upcoming Vulcan.
Back when Spacex started trying to catch the fairing without it hitting the water, I recall someone mentioning that their competitors Ariane 5 and Atlas V use fairings from a company that designs them to be recoverable after splashdown, and apparently reusable (maybe partially).
I believe I saw that said in an article or response concerning this tweet by Elon.
Now that I actually search for it, I can't find a single mention of RUAG Space or any of those rockets recovering their fairings.
Does RUAG Space recover (and reuse?) their fairings after splashdown?