I guess they were working with some Brazil government, because there are news about this coin:

http://computerworld.com.br/niobium-coin-nbc-nao-e-um-ativo-financeiro-diz-cvm

http://www.infomoney.com.br/mercados/bitcoin/noticia/7151477/exclusivo-conheca-bomesp-primeira-bolsa-criptomoedas-empresariais-brasil

regards,