"We are extremely pleased to have concluded negotiations with Mainfreight today," he said.
"By converting our under-utilised land this way, we are able to secure long-term benefits for our shareholders."
Haua said the lease to Mainfreight was a long-term commitment by both organisations.
The site had convenient access to State Highway 2, and the Port of Tauranga and Haua said the hub would benefit Tauranga and the wider Bay of Plenty through the provision of efficient transport logistics and employment opportunities.
Mainfreight group managing director Don Braid said the long-term lease on this land would benefit its people, customers and shareholders.
"The length of the lease fits perfectly with our 100-year vision," he said.
"Our sustainability and environmental attitudes sit nicely with Mangatawa's own values around kaitiakitanga. It is our intention to bring power from the sun and use rainwater for our facilities."
Mainfreight joins Mangatawa's other Truman Lane lessees, Tui Products and Stadium Storage. Earthworks on the subdivision are expected to begin this month.
The industrial land development is part of a growing investment portfolio for Mangatawa, including its partnership in Pacific Coast Retirement Village in Papamoa.
Last week Retirement Commissioner Diane Maxwell officially opened the village's $10 million community hub that includes a 50-seat movie theatre, restaurant and retail facilities.
Mangatawa also owns 101ha of farmland and has kiwifruit and avocado orchards.
