Yes.
In a market economy, companies can choose brand names based on their own needs and market demand. If the company believes that using a Korean-biased brand name can better meet market demand and corporate positioning, then it is okay to use a Korean-biased brand name. Therefore, it is okay to give the glass water a Korean brand name.
Of course, when using brand names, you also need to comply with relevant laws, regulations and trademark registration regulations to avoid infringement and disputes.