The effects of the preliminary accord could reverberate through thousands of manufacturing plants across Mexico.
A preliminary accord between all sides was signed Monday which brought in a ceasefire from Tuesday.
But diplomats involved in the negotiations said the failure to agree even to a preliminary accord was wasting valuable time.
A preliminary accord was reached in July.
Treaty of Taastrup is signed as a preliminary accord and negotiations continue.
The presidents of five Central American countries today signed a preliminary accord intended to resolve conflicts in the region.
It was a preliminary accord that contained many secret clauses.
On 19 September 2005, North Korea announced that it would agree to a preliminary accord.
He said a preliminary accord could come as soon as Tuesday.
Discussions are taking place through the Six-party talks about a replacement agreement, reaching a preliminary accord on September 19, 2005.