In addition to his work in entertainment, Metawin is a global house ambassador for luxury brands Prada and Tiffany & Co. and was named to the Forbes 30 Under 30 Asia class of 2023.

[8][9] He studied as an exchange student at Belmond–Klemme Community School District in Iowa, USA, where he passed the General Education Development (GED) exam in 11th grade.

[19] In June 2020, during his fourth year of university and at the start of his career in the entertainment industry, Metawin launched his fashion brand, Velence, sold primarily through an online platform.

[20][19] In the same year, Metawin co-founded Souri, a confectionery business, with his sister Mintra Opas-iamkajorn, a Le Cordon Bleu graduate with an MSc in food quality and innovation from the University of Leeds.

[30] In December 2024, he launched another dessert shop, Cosie, with chiffon cake as its primary product, which he developed with his sister, Mesa Opas-iamkajorn.

Metawin shared his own experiences of dealing with stress and pressure during his adolescence, encouraging young people to seek help when needed.

He was among 12 famous artists and influencers who volunteered to share their personal stories to make the campaign more relatable and accessible to young people.

In September 2020, Metawin was announced as a member of F4 in Thailand's adaptation of the Japanese manga series Hana Yori Dango (Boys Over Flowers), written by Yoko Kamio.

One of his Chinese fan clubs organized a birthday project displaying his photo via the Ladybeetle-1 commercial satellite as it orbited Earth on 17 February.

[45][46][47][48][49][50][51] At GMMTV's Borderless event in November 2021, it was announced that Metawin would star in his third drama series, Devil Sister, alongside actress Peechaya Wattanamontree.

[53][54] Metawin regularly appears on the covers of prominent fashion magazines such as GQ, L'Officiel, Elle, Harper's Bazaar, and Vogue, both in Thailand and internationally.

He is also featured on the official pages of luxury brands including Louis Vuitton, Valentino, Dior, Gucci, Burberry, Prada, and Moschino.

[55] He attended the Louis Vuitton Fall-Winter 2022 Men's Spin-Off Show in Bangkok, generating significant social buzz and digital traffic at the event.

[56][57] According to Launchmetrics, Metawin ranked first as the top voice, post, and influencer during Milan Men's Fashion Week for his appearance in the front row of Prada's Spring-Summer 2023 Runway Show.

[81][82][83][84][85] American luxury jewelry brand Tiffany & Co. appointed Metawin as their House Ambassador on 29 February 2024, making him the first individual from Thailand and Southeast Asia to hold the title.

[88][89] During the event, his debut international film, Under Parallel Skies, directed by Sigrid Andrea Bernardo, premiered as part of the awards' featured program.