Treasure EP.Fin: All to Action
2019 studio album by Ateez
Treasure EP.Fin: All to Action is the first studio album by South Korean boy band Ateez. It was released through KQ Entertainment on October 8, 2019, alongside the single "Wonderland" and its music video. It also serves as the final part of the Treasure series. The album debuted atop the Gaon Album Chart. The single "Wonderland" was certified Gold in Brazil (Pro-Música Brasil) for selling over 20,000 units.
Background and writing
The album was produced by Eden, who has produced much of the band's material. He also co-wrote most of the tracks with Buddy, Leez and Ollounder, the latter two of whom contributed to Treasure EP.3: One to All. Band members and rappers Hongjoong and Mingi co-wrote "Wonderland", with Hongjoong also partaking in the composition of "Sunrise". The song "Thank U" was also written by Hongjoong to express his gratitude towards fellow member Seonghwa.
The public source identifies “Treasure EP.Fin: All to Action” as 2019 studio album by Ateez. This brief keeps that definition visible, then builds a research path around Treasure, Action and studio.
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Object files, edition statements, performance records and contemporary criticism preserve different stages of the work’s history. The source revision retrieved here is dated Feb 2, 2026. The linked authority identifier is Q74380182. None of the 1 selected statements returned an explicit reference. The first chronological checks are 2019.
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This entry incorporates text from “Treasure EP.Fin: All to Action” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.