sudo chown not working....

First of all, thank you for any help I might get. I'm trying to learn linux and working in a VM environment using ubuntu server and every time I remember a command without having to look it up I feel like superman.

Now my question:

I have an smb share that I mounted in the /mnt directory. Here is what I see for /mnt:

drwxr-xr-x 6 chia root 4096 Oct 17 23:08 mnt

within /mnt I have these:

drwxr-xr-x 2 root root 0 Jul 20 03:58 chiaplots
drwxr-xr-x 2 root root 0 Oct 10 12:34 chiaplotting
drwxr-xr-x 2 root root 0 Oct 10 12:35 chiaplotting2
drwxr-xr-x 2 root root 0 Oct 16 12:52 chiapoolplots

I need to be able to read/write all of these directories so I tried for example:

sudo chown -R chia:chia /mnt
sudo chown -R chia:chia /mnt/chiapoolplots/

But nothing changes. I'm doing something stupid but I can't figure out what. Does the fact that these are network shares mounted into this directory somehow preclude the use of chown or am I doing something else wrong.

Any help greatly appreciated!