Semaphore Signs

Green Key Shop

Preferred Green Key signing supplier

Semaphore Signs is a corporate partner and preferred supplier of all Green Key signing. We’re dedicated to help you present your Green Key certification in a clear, stylish and, of course, sustainable way.

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Official Green Key Products:

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Recycled flags

PET Flag

All our flags are produced from recycled PET bottles, a unique and innovative process developed by Semaphore Signs.

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