Yayasan Tambah Tumbuh Indonesia · Surakarta, Central Java
Waste has value. What has been missing is the record of it.
We build a waste management chain from households all the way to industry — and record every kilogram through the Sirkula platform, so the impact can be checked by anyone.
What we do
Six steps run in sequence, not as separate programs. This chain only works if every link in it works.
Education & mentoring
Source-sorting training together with neighborhood groups, schools, and institutions.
Forming Waste Bank Units
Waste Bank Units are formed, mentored, and evaluated for how active they stay.
Collection
A fixed collection schedule so units don't stop transacting.
Sorting
Sorting by category and material type before processing.
Sale to industry
Clean material is sold to offtakers at industrial prices, not scrap prices.
Digitalization
Every transaction is recorded with photo evidence and an audit trail in Sirkula.
Who this profile is written for
CSR & ESG partners
Validated waste-reduction volumes, ready for sustainability reporting and EPR obligations.
Donor institutions
Legal standing, three-organ governance, and impact reporting that can be audited by third parties.
Government & state enterprises
Direct support for open-dumping phase-out action plans and national waste-handling targets.
Recycling industry
A supply of raw material with clear quality and provenance.
We have the network and the experience. What's needed is the assets and the systems.
Land, warehouses, processing machinery, fleet, and a digital platform — that's what we're proposing to funding partners. Everything else has been running for years.