If you are someone involved in creating costumes in any form or fashion then you are sure to know of the two major producers located in New York. So many customers traverse these stores looking for material, costume supplies and even a China based manufacturer to mass produce costumes for Carnivals taking place globally, it was only a matter of time before information being so readily shared made it way back to The Sauce as paths cross.
Here is a mention of a producer speaking to someone at Antilla Carnival event in 2008:
Hai Lin owns Hai Trimming Inc, a company in New York City that produces the mas for Trinidad Carnival. He explained to me he doesn't design any of the mas he receives the designs from the mas camp and he simply manufactures the designs out of his shops in China. He states he is s always impressed with the designs from the mas camps Spice and Element mas camps gave him the most business for the 2009 carnival season. SOURCE