Sirco had a business deal with a Lissepian freighter captain but was unable to pay for the ordered hundred gross of self-sealing stem bolts. Nog and Jake Sisko got the stem bolts in exchange for five thousand wrappages of yamok sauce.
Later the boys, under the alias Noh-Jay Consortium, contacted Sirco to sell him the stem bolts in exchange for gold-pressed latinum. However, the Bajoran was unable to pay with latinum and proposed to buy the stem bolts for seven tessipates of Bajoran land. The boys accepted this offer. (DS9: "Progress")