The U.S., Canada and Mexico jointly claimed "significant progress" Wednesday following the end of their third round of talks to renegotiate the North American Free Trade Agreement, but did not give specifics.

"In particular, meaningful advancements were made in the areas of telecommunications, competition policy, digital trade, good regulatory practices, and customs and trade facilitation. Parties also exchanged initial offers in the area of market access for government procurement," said a joint statement by the three countries' top negotiators, Canadian Foreign Affairs Minister Chrystia Freeland, Mexican Secretary of the Economy Ildefonso Guajardo and U.S. Trade Representative Robert Lighthizer. The talks were held in Ottawa.

The statement did not elaborate on what the advancements were and which parties, if any, had made concessions.

The negotiators said they had "substantially completed" matters relating to small- to medium-sized companies and had "advanced substantively" in the competition chapter of the agreement. They expect to conclude the negotiation on that chapter before the next round of talks begin.

That statement concluded that the countries remain commited to an "accelerated" timeline for the talks. The next round is scheduled to begin in Washington Oct. 11 and last for four days.