In that report, they list iPhone 6 disassembly recovery by kg/100k phones (search for Tungsten.) Cross-reference with the components by weight for the iPhone 6S (6 is not available; see https://www.apple.com/environment/reports/ for all reports.) Ignoring battery, screen and plastic leaves .063kg/phone, and according to that side bar, Liam recovers .033kg/phone or ~50%. Assuming Apple recycles most of the battery, screen and plastic, they are recovering ~75% of each 6S. That's pretty good, and it's good to know that the unrecoverable portions are staying out of the trash (and hopefully heat/vapor waste is mitigated), but it's years away from being close enough to 100% to round up.
The main document you should read is https://images.apple.com/environment/pdf/Apple_Environmental... where there are some 100%s, but they don't make this particular promise.
In that report, they list iPhone 6 disassembly recovery by kg/100k phones (search for Tungsten.) Cross-reference with the components by weight for the iPhone 6S (6 is not available; see https://www.apple.com/environment/reports/ for all reports.) Ignoring battery, screen and plastic leaves .063kg/phone, and according to that side bar, Liam recovers .033kg/phone or ~50%. Assuming Apple recycles most of the battery, screen and plastic, they are recovering ~75% of each 6S. That's pretty good, and it's good to know that the unrecoverable portions are staying out of the trash (and hopefully heat/vapor waste is mitigated), but it's years away from being close enough to 100% to round up.