A "separate subsidiary" refers to a company that is owned and controlled by another company, but is operated independently as its own separate entity. It has its own management and financial structure. Full definition
Interestingly enough, Gerber Products and Gerber Life are financially separate subsidiaries of the Nestlé Corporation, whose basic purpose of operation has been unchanged since 1867, and whose business practices reflect the basic ideas of fairness, honesty and a general concern for people. (guaranteedissuelife.com)
Other, totally separate subsidiaries own the manufacturing plants that make Tide and pay the company that owns the brand name a licensing royalty. (thebalance.com)
The only thing GLB did was allow banks to participate in a wide number of different businesses in separate subsidiaries. (alephblog.com)