Singapore students clinched a total of 18 medals at four International Olympiads for Science and Mathematics held this month, according to a statement issued by the Ministry of Education (MOE).

The Singapore team received one Gold medal and three Silver medals at the 21^st International Biology Olympiad (IBO) held in Changwon, Korea, from July 11 to 18. Singapore was placed ninth in a field of 233 students from 58 countries.

The gold medallist is Daniel Lim Yan Zheng of Anglo-Chinese School (Independent). The silver medallists are Yong Xianbin of Hwa Chong Institution; Zeng Tian Chen of Raffles Institution; and Kylie Goh Jin Ying of NUS High School of Mathematics and Science.

At the 41st International Physics Olympiad (IPO) held in Croatia from July 17 to 25, the Singapore team received one Gold medal and four Silver medals. Singapore was placed seventh in a field of 367 students from 82 countries. This year is an improvement over Singapore's eighth placing in 2009.

Chua Lynn of NUS High School of Mathematics and Science garnered the medal, while Lim Soon Wei Daniel and Lee Jie Liang of Raffles Institution and Darryl Foo Chuan Wei and Goh Qi Xuan Benjamin of NUS High School of Mathematics and Science were awarded the silver medal.

The Singapore team received two Gold medals and two Silver medals at the 42^nd International Chemistry Olympiad (IChO) held in Tokyo, Japan, from July 19 to 28 this year. Singapore was placed fourth in a field of 267students from 68 countries. The result is an improvement over Singapore's fifth placing last year.

The Gold medallists are Fong Jie Ming Nigel and Lum Jian Yang of Raffles Institution. The Silver medallists are Tng Jia Hao Berry of Raffles Institution and Khu Boon Hou Derek of Hwa Chong Institution.

At the 51^st International Mathematical Olympiad (IMO) held in Kazakhstan July from 4 to 14, the Singapore team received four Silver medals, one Bronze medal and one Honourable Mention. Singapore was placed 22^nd in a field of 517 students from 96 countries. It is an improvement over our 30^th placing last year.

Singapore will be sending a team to compete with delegates from 80 countries at the 22^nd International Olympiad of Informatics (IOI), which will be held in Ontario, Canada, from Aug 14 to 21.

The contestants are Raymond Kang Seng Ing, Chin Zhan Xiong and Shen Chuanqi of Raffles Institution; and Daniel Wong Lin Kit of Hwa Chong Institution.