OUR TEAM

Managing Director

Darryl Burn

I joined pH7 in 2007 and have been the driving force behind our strategy of specialising in HAZCHEM Safety Solutions. Over the years I’ve had the opportunity to complete many courses of interest including: HSNO Certification Qualification, Responsible Care NZ (2010), HSNO Advanced Training, Responsible Care NZ (2013), Approved Handlers Test Certificate, Class 3.1 Flammables (2015), Comprehensive Chemical HSWA Training, Rifft (2022).

Outside of work, I love all things water based including sailing, spearfishing and paddle boarding with my wife and three children.

Finance Manager

Patricia Canavan

My path to finance has come via sales and marketing positions in multinational companies in Europe, managing a service company in Ireland and then gaining my “kiwi experience” at PwC, in Auckland.

I’ve been with pH7 since 2015 and am one of the owners of the business. I’ve witnessed the company growing its product and service offering, while strengthening its market position and overall HAZCHEM expertise.  I love living in NZ, raising three cherubs and getting outdoors as much as I can.

South Island Business Manager

Tiffany Sharrott

I am originally from San Diego California and relocated with my family to New Zealand in 2014. My family loves to travel and after a holiday in New Zealand our daughter decided she wanted to get her Master’s Degree in Winemaking here.   I started my career in law and have expanded my experience to real estate, cleanroom protocol training and now working with pH7.

I am an Associate Member of NZOHS and am a Commit2Fit Certified Respiratory Fit Tester.  I have also completed The Educhem Management Course with Environmental Protection Authority Notices and Health and Safety at Work Regulations, have a Certificate in Mould Hazard Awareness Training from MHA, Compliantly Managing Hazardous Substances and W507 – Health Effects of Hazardous Substances.  I specialise in site risk assessments and travel the country working with businesses that handle hazardous substances.

In my spare time, I am an avid reader usually with three books going at one time.  I also love movies and good food!  I love to travel and spend time with the family and our dog Hinckley.

Sales Support

Bianca Mitchelson

I joined pH7 in 2020, coming from the plumbing industry. As part of the sales team, I look after a group of customers making sure they are well cared for. I’m also the main person in charge of optimising our CRM system which seeks to improve workflows and ensure every lead is nurtured from start to finish. I am NZOHS certified as a Commit2Fit Respirator Fit Tester.

Business Analyst

Navnish Singh

I joined pH7 in 2019 as a business analyst providing support to various departments such as sales, marketing, warehousing and management. My role is to crunch the numbers into something meaningful so the company can run more efficiently.  Along with this, I have been involved in various projects such as the implementation of Netstock, Zoho and the warehouse relocation.

Outside of work, I love my sports all so much that I am spending half the season out on the sidelines recovering from an injury.

Accounts & Customer Solutions Rep

Rebecca Smith

I joined pH7 in October 2022, a new addition to the team and the industry. Whilst most of my previous experience is in customer service, I’m excited to learn a wide range of knowledge from my colleagues.

Outside of work, I love spending time with family and friends, photography, live music and spending time at the beach.

Warehouse Manager

Eric Uy

I joined pH7 in 2015 as a storeman and have moved into the team leader role and am now the Warehouse Manager. I’m responsible for all aspects of pH7’s warehouse operations from devanning through to dispatch, ensuring the team achieves the key performance measures around picking accuracy, timely delivery and safety.

My Bachelor’s Degree in Business Administration along with further training in optimising warehouse performance and Hazard Analysis are all useful tools I use to ensure we deliver in full and on time.

Warehouse Despatcher

Marecel Costillas

I joined pH7 in January 2023 as the newest addition to the team in the role of Warehouse Dispatcher.

Alicia Lui

Marketing Comms Specialist

Alicia has joined the team as our Marketing Communications Specialist after working in co-ordination roles in various industries during recent years, as well as having graduated with a Bachelors degree in Marketing and Management in 2021. Alicia manages our online presence through our social media channels such as LinkedIn and Facebook, and is in charge of updating and maintaining our website.

Once she bids farewell to her keyboard at the office each day, she says hello to her keyboard at home. Outside of work, she enjoys playing video games, reading webtoons, and living on YouTube.

Char Smith

Regional Sales – Central North Island

Having worked in the Construction and health and safety industry for many years, Char has joined the team at pH7 with the goal of helping New Zealand businesses reduce the harm from hazardous substances to people and the environment. 

When she’s not out on the water exploring our beautiful country, she’s helping businesses in the Central North Island from East Auckland, Waikato and Bay of Plenty with their HAZCHEM Safety needs.

Justin Kumar

Warehouse Despatcher

Justin has a strong enthusiasm to learn new skills and his friendly and outgoing manner make him the perfect choice as an addition to our passionate team!

Rick Zhang

International Purchasing Manager

Micah Brown

Regional Sales – Upper North Island

Originally from Canada, I came to NZ in 2011, fell in love with the place and decided to stick around permanently.

Over the years I’ve worked across a range of industries and workplace supply categories,  and I’m glad to represent PH7 managing sales for the Upper North Island territory (from Penrose north).

In my spare time I love to play footy, dabble in photoshop painting and try to keep up with my kids.

Mary Adams

Accounts & Customer Services

I joined the pH7 team in August 2025.

I come from a various of back rounds in Manufacturing, Early Childcare and Learning & Development.

My family love to play Touch rugby and we offer our services to the local communities with coaching clinics when we can.

I also enjoy fishing, the outdoors and love to travel.