Huon Aqua

This company is a member of the Global Salmon Initiative, global leadership initiative founded and lead by salmon producers dedicated to determining the best measures by which their sector can grow sustainably.
[Source 2014][More on Multi-Stakeholder Initiatives]

This company has sustainability claims on its website including efforts in the areas of fish welfare, wildlife management and minimising the impact on the local marine environment.
[Source 2014][More on Sustainability Reporting]

Transcript from the ABC's 7:30 Report (2009). Issues raised include use of antibiotics, damage to marine environment, use of 4kg of wild fish to produce 1kg of farmed salmon, being called the "battery hens of the sea". Please note however that reliance of wild caught fish has reduced in recent years, and in 2014 Huon claimed it uses 1.69kg of wild/forage fish to produce 1kg of farmed salmon.
[Source 2009][More on Oceans]

Huon Aqua operate salmon farms in Tasmania. Australia's Sustainable Seafood Guide recommends eating less farmed salmon (Orange rating). It's website states: produced in sea cages; carnivorous species that is dependent on wild caught fish that is manufactured into fish feed. While the amount of wild caught fish in feed has been reduced over recent years, the amount of wild-caught fish used in feed is currently more than the weight of salmon produced; localised impacts from salmon farming effluent are minor and short-lived; impacts of the industry on a broader ecological scale are less well understood; producers have reduced the use of antibiotics.
[Source 2014][More on Oceans]

According to data released by the Australian Tax Office in Dec 2018, this company was one of 2,159 local and foreign-based companies that paid no tax in Australia in 2016-17. Please note however that companies pay income tax on profits, not revenue (total income). While some companies use tax havens and loopholes to avoid paying their fair share of tax in Australia, other companies that paid no tax have perfectly legitimate reasons.
[Source 2018][More on Finance]