On Non O visa that will expire on 23 Ocotber. Just got my work permit that will expire on 29 October..is all correct? 

Yes the two are not linked but the WP will be invalid once the visa expires. 

1 hour ago, 1812 said:

Yes the two are not linked but the WP will be invalid once the visa expires. 

Incorrect. The Work Permit becomes invalid once it expires. It is not based on the status of your visa. However, if one gets an extension of stay based on work that extension becomes invalid when the work permit is cancelled or expires.

 

But the OP should be aware that the WP is not a substitute for a visa or permission to stay so when his visa expires he needs to get an extension or leave the country.

OP, all is correct. Just don't forget to apply for an extension of stay before the 23rd of October.