Add Haynes and Boone to the ever-growing list of international law firms vying for a slice of the work in the emerging market of Brazil. The Dallas-based firm and Rio de Janeiro’s MMA Lawyers are set to announce Tuesday that they have begun practicing under a cooperation agreement finalized in February. In keeping with Brazilian bar rules, the firms will remain independent, and Haynes and Boone lawyers will not practice Brazilian law.

Timothy Powers, a member of Haynes and Boone’s board of directors and the partner who oversees the firm’s international practice, says the two firms were introduced through a mutual contact about 18 months ago. “We went through a long, long courtship to make sure that [this made sense] from a cultural perspective and from a strategic perspective,” Powers says.