一句英文,我看不懂後半段的文法,請教高手

這一句話從,with開始的文法我就弄不懂了,有什麼玄機在嗎?
請高手解析文法的同時也翻譯整個句子,謝謝

The food and beverage industry is a mainstay of New Zealand's economy, with the country having earned an international reputation for the freshness and flavours of its premium food and beverage products.
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