1. lf company A's products are complementary to company B's, and both can provide supporting services for company C.
then company A and company B will form a strategic cooperative relationship through such complementary products.
2. If company A's products provide supporting services for company C, and company A and company C have a commonupstream customer company D. then company A, company C and company D wil form a strategic cooperative relationshipthrough such upstream and downstream cooperation and cooperation.