Meeting with other nations has also been very useful in pushing along various market access issues which will have real benefits for our exporters.
A big issue for trade we've discussed is not just tariffs but also non-tariff barriers like complicated and unpredictable rules and regulations that some countries apply at the border.
This kind of bureaucratic red tape can be a major obstacle to trade, especially for small and medium sized companies.
This is why the TPP is so important, because it sets the frameworks for consistent standards and rules across the region. Without this certainty a lot of trade and investment just wouldn't happen.
Before coming to Peru I spent a day and a half in the US state of Nebraska where I strongly pushed the benefits of the TPP.
It is a hot topic in the US with both presidential candidates sceptical, but there is support in the broader community and some optimism from people I spoke to that it will pass during Congress's 'lame duck' period following the election.
While in the US I pointed out the Asia-Pacific region has enormous growth potential and is determined to liberalise trade, whether the US is involved or not.
As part of this visit I spoke to a Global Forum on Agriculture and Trade, held a press conference and met with various industry and other leaders including congressman Tom Ashford.
It was pleasing to hear strong support for TPP from the wider agricultural sector but as in New Zealand to some extent, the challenge is communicating the benefits to the wider community.
Another eye-opening part of the trip was visiting a desert in northern Peru where T&G (Turners and Growers) is growing grapes with the help of irrigation, water storage and New Zealand expertise.
It was hard to believe that much could grow in these hot dry conditions but it just reinforced to me the huge potential of water storage.
- Nathan Guy is the Minister for Primary Industries