The U.S. Treasury has designated hundreds of Mexico-based businesses for cartel ties, according to ZETA Tijuana. On its face, the number is stark. In practice, it fits a pattern. OFAC has been adding companies across tourism, fuel, logistics, and real estate, while FinCEN has tightened the screws on banks and brokers. Recent actions hit CJNG’s timeshare racket in Puerto Vallarta and flagged three Mexican financial institutions under new fentanyl …