[Grammar] Which mean/meaning

[Maybo]

From the group's capital appreciation and foreseeable dividend payout ratio, Chan believes that China Hongqiao has strong production capabilities and is cost-effective, which means that the profits of the group will be satisfactory.

In what situation should I use "which mean" or "meaning"?

Source：The standard

 

[Charlie Bernstein]

From the group's capital appreciation and foreseeable dividend payout ratio, Chan believes that China Hongqiao has strong production capabilities and is cost-effective, which means that the profits of the group will be satisfactory.

In what situation should I use "which mean" or "meaning"?

Source：The Standard

It's another way of saying ". . . and is cost-effective​. That means that the profits of the group will be satisfactory."