I'm messing with you man. These rarities do exist though, but damn even here in Asia, you'd be hard pressed to find a minimum weight in your local gym.
Most Japanese gym have a minimumweight or two Watanabe seem to be collecting them with Shigeoka bros and Taniguchi
I frequently visit Japan (Tokyo/Osaka) but I got to admit I haven't been to the local gyms. This gives me more reason to pay one a visit, assuming gaijins are welcome of course.
I don't think that Moonsri is gonna break Lopez's defense record either. He's still far from breaking it now. First, I just don't know who Moonsri is because his name in boxing is Wanheng Menahyothin and his real name is Chayapol Moonsri. He's doing great now in defending his WBC Minimumweight.