I think it is because it a private labled rum made for Zaya by Industrias Licoreras. Kinda like in sporting goods (thinking fly fishing here

companies will often contract with a major manufacture to make their own private label or store brand for them. An example I think of off hand is LL Bean contracts out with other manufactures to make some of their fishing tackle to their specs. Similiar to what Zaya has done with Industrias Licoreras...at least that would be my guess.