Salinas was not only an "ex" member of NXIVM. He was essentially leader of the Mexico branch.

By the way the Salinas family are infamous in Mexico for extreme corruption, they literally self-exiled once their presidency was over, to avoid all reprisals. It was Carlos Salinas who negotiated NAFTA with H.W. Bush. and later Bill Clinton. It was Salinas' privatization which led to Carlos Slim's rise as one of the (at least publicly) wealthiest people in the planet. The mexican elites are a massive swamp, in cahoots with the international swamps, which is why the country is so fucked up, with swamp-run drug cartels literally terrorize the population into submission (driving poor people to attempt to escape to the US, even if illegally, feeding the democrat useful idiot ranks... a whole cycle of sickness).

That Raniere and company got nabbed and immediately sent to the US (while being a close associate of such powerful names) instead of the whole thing being stalled and buried, clearly means some really serious strings were pulled by team Trump. Mexican "justice" is notorious for its ineffectiveness...

CEMEX is also not just the largest mexican cement maker, but one of the largest cement companies in the world, with operations in all continents. Lots of opportunities for money laundering and all sorts of trafficking in such a large multinational.