Michelin had lots of Rubber plantations out there. During it's time as a French Colony, Michelin was making money hand over fist, during French control. By what you say, sounds like they were still coining it when you were there.
Steve
A Mild term,,Id be banned if I said how I really feel and did then,,The Big Plantation was on hwy 13-thunder road along the Cambod. border,,for,,aft and center of some of the worst hard fought areas ,,Some photos in my albums,,Might as well have been the Riviera as untouchable as it was by everyone,,they did condescend to let the U S use the airstrip,,when the wall to wall air America flites ,,business types,etc weren't taking up the pattern,,and it was an easy day at the pool,,tennis courts ,,cafes ,not for us,,now its four lanes with an exit ramp,,,rest easy 2/18th Inf its a new day,