"cooperative ties" is correct and usable in written English.
You can use it to refer to a relationship of mutual trust and friendship between two or more people or organizations. For example, "The two companies have a strong history of cooperative ties, which has enabled them to collaborate effectively on many projects in the past."
Iranian President Mahmoud Ahmadinejad and Venezuelan President Hugo Chavez have close, cooperative ties.
The statement from Pakistan's Ministry of Foreign Affairs said that Mr. Karzai's visit "will contribute to further enhancing friendship and close cooperative ties" between the two countries.
Turkey has warned that its cooperative ties to Israel could be irreparably damaged unless the Israelis apologize and accept an international investigation, steps Israel has so far refused to take.
While Beijing has extensive cooperative ties with South Korea, it is leery of the possibility of Korean unification led by the South, which might well remain a U.S. ally with American soldiers possibly stationed in northern Korea.
Even as they said they understood the government's reasons for the program, many said it had instead served to alienate the very people to whom the government ought to develop cooperative ties in its fight against terrorism.
While the Amish have a long history of schisms, clusters of congregations tend to have cooperative ties, and the fact that Mr. Mullet's group is not linked to any other is a sign of their renegade status, said David McConnell, an anthropologist at the College of Wooster who studies the Amish.
But the cooperative association is seeking to tie its domain to a larger mission.
"La Bataille du Rail" ("The Battle of the Rails"), his first feature (1946), was commissioned by a cooperative with ties to the Communist Party and the very real resistance of the French railway workers union; like "Rome: Open City," it has a raw, newsreel-like quality, born as much from the director's previous experience in documentary shorts as to the limited production resources of the time.
Recent deals have stepped up cooperative and cross-ownership ties between Nippon Steel and Pohang Iron and Steel of South Korea.
Once rule-breaking had become prevalent, these factors were further exacerbated by the existing strong social ties among cooperative members, ties that under other conditions had been conducive to CBM.
Drones rely heavily on cooperative regimes that can tie America's hands in terms of supporting change.
