Commerce Commission

New Zealand's two biggest publishers of news go to court today to try and overturn the competition watchdog's refusal to green-light a merger.

The Commerce Commission is cracking down on utility companies using their own maintenance teams because it suspects the practice is pushing up power bills.

New Zealand's gyms have been told to shape up, after some of them were found to be signing up customers to unfair contracts.

A massive upgrade of electricity wires, poles and transformers across wide areas of the North Island could add $3 to $4 per month to average consumers' power bills.

The Commerce Commission has chosen not to take legal action against a steel supplier that put wrong information on its test certificates. Audio

Four leading telecommunications companies have received warning letters from the Commerce Commission over misleading practices.

Hamilton real estate agency Online Realty is the latest company to be fined for price fixing, and has been ordered to pay more than $1 million.

The Commerce Commission is defending itself against allegations that is going soft on electric lines companies.

Two petrol companies - Gull and Mobil - did not provide all the information the government's fuel price inquiry asked for, the Energy Minister says. Audio

Petrol prices would drop if it was made easier for new players to enter the market, the country's largest independent petrol company says.

The building regulator has asked the Commerce Commission to investigate seismic steel reinforcing bar sold by a major supplier.

Electricity distributors are defending their use of what the Commerce Commission is calling outdated equipment.

Analysis - Demand for a steel supply system New Zealanders can rely on matters more in the middle of a construction boom, writes Phil Pennington.

Chinese regulators have disqualified a steel-testing laboratory for using false accreditation, after being alerted by New Zealand investigators. Audio

Media companies Fairfax and NZME are appealing against the Commerce Commission's decision to turn down their merger.

A company and two of its employees that sold fake alpaca and cashmere duvets have been fined nearly $194,000 by the Commerce Commission.