The stoush between workers and management at lunch-box maker Sistema has flared up with E tū union once again alleging sweatshop-like conditions at its South-Auckland factory.
The popular brand was sold by Kiwi businessman Brendan Lindsay to US-based Newell brands for $660m in December 2016.
E tū, prior to the sale, had accused the company of being a "sweatshop".
Sistema, at the time, responded by saying the factory operates on a 24/7 basis and all workers are given the opportunity to work shifts that best suit them and the company.