Protesters from the Huon Valley Environment Centre and the group Still Wild Still Threatened have climbed onto the roof of Gunn's head office to highlight concerns over the company's proposed pulp mill. The three activists were escorted from the roof by police.

Another group of protesters occupied the office. No arrests took place

Spokeswoman, Ula Majewski, says the campaign against the pulp mill has reached a critical point. "Tasmania now is in a state of emergency," she said.

"Our fundamental democratic principles have been corrupted, our forests are still being clear-felled and burnt and we think it's disgusting this pulp mill is even an option for the Tasmanian Government to consider."