010 300 5709 admin@umoyavohe.co.za

What We Offer

Umoya VOHE solutions provide an expert inclusive service, tailor made for each site and specialising in:

  • Operational VOHE Service for Mining (12.1 appointment), occupational Hygiene for Industrial and Engineering Sectors;
  • Process Plant, Refineries, Smelters, Concentrators, Quarries, Brick Making, factories manufacturing facilities;
  • Environmental Measuring & Monitoring, Nose & Dust, Vibration, water and swab;
  • Supply of Equipment and related instrumentation;
  • Specialised Service such as Ventilation Mine Planning and Refrigeration;
  • Ventilation and occupational Hygiene engineering related Training;


Umoya VOHE Solutions (Pty) Ltd is at this stage a Level 4 BEE company comprising of a team of experienced professional Ventilation and Occupational Hygiene Engineering (VOHE) Specialists in the Mining and Industrial & Engineering sectors.


To become the dominant service provider to the Mining and Industrial sectors by offering a professional service based on scientific principles, using the latest technology available, so as to provide our client base with accurate and unbiased information on matters relating to Ventilation and Occupational / Industrial Hygiene Engineering (VOHE).


To continually improve and evolve with the latest technological advances in the fields of Occupational and Industrial Hygiene with regards to ensuring that we safeguard the health of every employee associated within a specific working environment.

Meet The Team
Danie Klonus

Danie Klonus


Cell: +27 (0) 83 308 6601

Email: danie@umoyavohe.co.za

Craig Maree

Craig Maree


Cell: +27 (0) 62 484 5244

Email: craig@umoyavohe.co.za

Anri de Jager

Anri de Jager

AIA & Laboratory

Cell: +27 (0) 82 772 4430

Email: anri@umoyavohe.co.za

Previous & Current

Umoya VOHE Solutions provides an inclusive consulting, training and operational service and both Umoya and the owners of Umoya VOHE Solutions have been involved with and carried 12.1 Appointments with various companies throughout South Africa and the rest of Africa which includes:

  • Platinum Mining:- (Maseve, SIBANYE STILLWATER Everest and Kwezi Mines, ANGLO PLATINUM – Base Metal Refineries and Exploration sites, Impala Platinum, Anglo American);
  • Chrome Mining:- (SAMANCOR Leside, Buffels, Mooinooi, Millsell Mines and TC Smelter, Sky Chrome, Cronimet Chrome Mining, Lanxess Chrome Mining, GLENCORE Kroondal, Rietvly and Waterval Mines, GLENCORE Laboratories);
  • Manganese Mining:- (Bushveld Manganese, Kalagadi);
  • Shaft Sinking:- (Ivanplats, Bakubung, Styldrift, Kalagadi, and for various Contracting Companies including Shaft Sinkers, Aveng Mining, Murray & Roberts);
  • Tunnelling:- (Ingula Pumped Storage Scheme for Eskom);
  • Crushers:- (Lesaka Crushers);
  • Training:- (Impala Platinum, Glencore, Assmang, Petra Diamonds, Cullinan Diamonds, Ekapa Diamonds, De Beers group of companies, African Resource Minerals, Dwarsrivier, South 32, Sasol and Anglo American International).


Covering numerous mining methods.

Umoya VOHE solutions expertise includes ventilation systems and fan engineering. Umoya VOHE Solutions is dedicated to finding and implementing practical, economic, efficient, solutions to all ventilation/environmental engineering and associated occupational health and safety problems for existing mining operations and new Projects.

Umoya VOHE solutions specialises in audits and reviews of ventilations systems, life-of-mine exercises, technical feasibility studies and the analysis of alternative ventilation and cooling  systems using latest computer simulation software(VentSim)

Umoya VOHE solutions have experience in the preparation of detailed main fan station specifications, booster and secondary fans, duct systems, cost estimating and project execution and management.

Umoya VOHE solutions ensures a productive, healthy and safe work environment for all employees, by providing a specialist occupational health service.

Umoya VOHE solutions also undertakes Occupational Hygiene Risk Assessments, provides the service of full time Occupational Hygienists, conducts audits on legal compliance, develops standards and systems and determine operational compliance interfaces with managerial standards, systems and procedures.

Contact Us

Address: Umoya VOHE & Laboratory Solutions
Office 19, 20, 21 & 22
Sitona Head Office
Plot 32 - Waterval
Business Hours: 8AM–4PM
Phone: 010 300 5709

Google Maps

Copyright © UMOYA VOHE SOLUTIONS. All rights reserved