Sam Chang

I bring people together in my community to address issues I care about!

I’m a Singapore-based high school student who brings people together to address local issues I care about. I co-founded EcoMiles, a youth-led plogging community combining running with litter cleanup at East Coast Park, and founded AstroYouth, which makes astronomy more accessible across Singapore. Both began as weekend meetups and have grown into funded, recognised community programmes.

Sam with his school's cross country team

Sam at an EcoMiles cleanup at East Coast Park

Sam celebrating with teammates after a race

Sam and a friend with litter grabbers at East Coast Park

Sam and a friend posing with litter grabbers

EcoMiles

Co-Founder & CEO

An EcoMiles plogger carrying a bag of collected waste

EcoMiles ploggers with collected waste bags at a park pavilion

Sam at a beach cleanup with collected debris

EcoMiles ploggers carrying collected waste bags on the beach

EcoMiles ploggers with collected waste bags under the trees

Sam at a beach cleanup with ploggers picking up litter

Leading weekly Plogs — exercise + trash-picking, every Sunday at East Coast Park.
Cold-emailed OCBC and secured a pilot partnership for two cleanups (30 people), $1,800 SGD funded.
Partnered with local cleanup organisations for plog events.
Featured by CNA, Happy Eco News, and OpenJio.
$1,000 SGD funded from The Awesome Foundation Singapore.
Oversee an ambassador program including Singapore national and NCAA D1 track/cross country athletes.
~$2,800 SGD funded to date.

Live impact — updates weekly from ecomiless.com

1.0k+Waste collected

32.3k+By volume

434.1+Distance covered

160+Ploggers

Last updated 9 Oct 2026ecomiless.com ↗

AstroYouth

Founder & CEO

AstroYouth members at a Community Astronomy Session

AstroYouth members with a telescope at a void deck session

AstroYouth members using a stargazing app

Young AstroYouth members looking at a stargazing app

Sam holding two DWARF mini smart telescopes from AstroYouth's equipment partners

Sam Chang holding a Seestar smart telescope

Sam with AstroYouth equipment partners at a camera shop

Making astronomy more accessible for youth in Singapore through weekly Community Astronomy Sessions.
Supported & funded by leading astrophotography technology partners, ZWO and DwarfLab.
Partnered with local community centres and the People’s Association to bring stargazing closer to home.
~$4,200 SGD received in funding.

Live impact — updates weekly from astroyouth.org

5Sessions hosted

48Members

37Youth reached

17First lights

11Mentors reached

38Astro images captured

Last updated 9 Oct 2026astroyouth.org ↗

Youth Aiding China & Singapore

Vice President, school service club · 2025 — present

Reached out and initiated a long-term partnership with Glyph Community — a Singapore-registered charity supporting children aged 5 to 12 from lower-income or vulnerable households through a holistic weekend enrichment program — to develop and deliver a hands-on Chinese cultural curriculum built around famous myths, poems, symbolism, and traditions.

Earth Observatory of Singapore

Research Intern · October 2026 — present

Interning under Professor Dr. Meltzner — helping conduct field work and extracting legacy borehole data to bust the myth that there are no earthquakes in Singapore.