Wai-Ching Lam
Wai-Ching Lam( MD, FRCSC) is a Chinese Albert Bing- Ching Young Professor of ophthalmology at The Hospital for Sick Children, University of Toronto and a co-chairman of the Asian- Pacific Academy of Ophthalmology.
Hwang Ye-sul
Hwang Ye- Sul( Korean: 황예슬; born 2 November 1987 in Gyeonggi) is South Korean judoka.
She competed in the 70 kg event at the 2012 Summer Olympics where she reached the semifinals but lost to Lucie Décosse and lost the bronze medal match to Edith Bosch.
Rachel Cheung
Rachel Wai-Ching Cheung( born September 27, 1991) is a classical pianist from Kowloon, Hong Kong.
She has won numerous prizes and awards in Hong Kong and overseas, and performs regularly in Asia, Europe, and North America.
Erica Barbieri
Erica Barbieri( born 2 March 1981 in La Spezia, Italy) is an Italian judoka.
She competed in the 70 kg event at the 2012 Summer Olympics and lost in the first round to Hwang Ye- Sul.
Haruko Obokata
The ensuing scandal in 2014 over STAP cells has since become one of the world's best- known scientific frauds alongside the Schön scandal and Hwang Woo-suk's cloning experiments.
Yau Wai-ching
Regine Yau Wai-ching( born 6 May 1991) is a Hong Kong politician.
She is a member of the localist group Youngspiration.
She was elected to the Legislative Council of Hong Kong as a member for Kowloon West in the 2016 Legislative Council election, but has since been disqualified pursuant to a judgement delivered by the High Court on 15 November 2016.
Erica Barbieri
Erica Barbieri( born 2 March 1981 in La Spezia, Italy) is an Italian judoka.
She competed in the 70 kg event at the 2012 Summer Olympics and lost in the first round to Hwang Ye- Sul.
Jenny Kwan
Jenny Wai Ching Kwan( born 1967) is a Hong Kong- born Canadian politician.
She was a Member of the Legislative Assembly( MLA) of British Columbia for the riding of Vancouver- Mount Pleasant, and a senior member of the provincial caucus of the New Democratic Party.
After serving for 20 years in the provincial legislative assembly, she was elected to the House of Commons of Canada in the 2015 election, representing Vancouver East.
Wai Ching Ho
Wai Ching Ho( born November 16, 1943) is a Hong Kong film and television actress.
She appeared as Madame Gao in the Marvel Cinematic Universe onscreen, in" Daredevil"( 2015–2016)," Iron Fist"( 2017) and" The Defenders"( 2017).
Raša Sraka
Russia Sraka( born 10 October 1979 in Ljubljana, Slovenia) is a Slovenian judoka.
She competed in the 70 kg event at the 2012 Summer Olympics.
where she lost in the quarterfinals to Hwang Ye- Sul and in the repechage to Yuri Alvear.

Question: Do Yau Wai-Ching and Hwang Ye-Sul have the same nationality?
Answer: no