New Zealand's biggest listed company has just revealed how one of its businesses made faulty, weak, sub-standard concrete and sent it out to many building sites.
And the country's largest motorway job, Waterview, has been hit by the fault, and part of a big new ramp will have to be fixed, along with retaining walls, footpaths and crash barriers.
Firth, owned by Fletcher Building, was forced to cease production at an Auckland plant due to the issue, a Fletcher statement just issued said.
"On Tuesday 28 April, Firth stopped production at one of its Auckland production plants after the company's quality control testing programme found some concrete from that site had not met product specifications. Approximately 35 customers have been affected including a mix of commercial and residential projects. The projects range from backyard pathways and post holes to commercial applications.