---
title: COS
description: COS worked with VIOOH and partners to increase brand awareness and recognition among those travelling to South Korea in this programmatic DOOH campaign.
---

[VIOOH Blog ](https://blog.viooh.com)

# [COS](https://blog.viooh.com/case-study/cos)

 Written by [Olivia Slade](https://blog.viooh.com/author/olivia-slade) | May 8, 2026 9:14:54 AM

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[View full post](https://blog.viooh.com/case-study/cos)

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