If you are Tauranga based, I can highly recommend the Barkes Corner Vet Hospital team, for all your veterinary requirements.  For your convenience, they are at two locations, Barkes Corner and Brookfield.

New Zealand Cat Registry based in Auckland and mainly serves the upper North Island.  Very friendly and helpful.

Pussydo sells Pine Pellet Litter and Litter Trays couriered to your door. Highly recommended! The trays include a sieve, allowing you to easily separate the sawdust.

Comfy Pets, a New Zealand manufacturer of quality pet products.  Their Cat Trees & Scratching Posts are Highly Recommended. Check out their other products such as Cat Teasers, Cat Beds, etc.  You will not be disappointed.

The purpose of the New Zealand Companion Animal Register is to get lost microchipped pets home.  All profits from the NZCAR are used to help fund animal charities and projects in New Zealand.