KBLI 36003 (Aktivitas Penunjang Treatment Air) is the 5-digit Indonesian Standard Industrial Classification code for water treatment support activities. It sits within the Water Treatment, Wastewater Treatment, Waste Material Treatment and Recovery, and Remediation Activities category in the official KBLI 2020 taxonomy maintained by Badan Pusat Statistik (BPS).

Can foreign investors operate under KBLI 36003?

Not in practice. KBLI 36003 is not on Pres. Reg. 10/2021's closed list, but OSS RBA only defines licensing rules at the Micro and Small business scales for this activity — there is no Large-scale matrix. Foreign-owned PT PMA must register at the Large scale, so this code isn't structurally available to foreign investors. PT lokal (100% Indonesian-owned) at the Micro / Small scale can operate freely.

What is the risk level of KBLI 36003?

KBLI 36003 has no Large-scale licensing matrix in OSS — it's structured for Micro and Small business scales only. PT PMA cannot register under this code as a result.

What licenses does KBLI 36003 require?

Not applicable to PT PMA — KBLI 36003 is not viable for foreign-owned entities (closed, SME-reserved, domestic-only, or no Large-scale licensing matrix in OSS RBA, depending on the case). Foreign investors should pick a related KBLI that is open at the Large scale.

What is the minimum capital for a PT PMA under KBLI 36003?

Not applicable to PT PMA — KBLI 36003 is not viable for foreign-owned entities, so neither BKPM Reg. 5/2025's paid-up minimum nor any sector-specific capital floor enters the picture. The structural barrier comes first.

How long does it take to register a business under KBLI 36003?

Not applicable to PT PMA — KBLI 36003 is not viable for foreign-owned entities, so the 4-8 week PT PMA setup timeline doesn't apply. Move to a sibling code with a Large-scale matrix or a different structure.

Is KBLI 36003 eligible for Indonesian tax incentives?

Not on the Tax Holiday or Tax Allowance priority lists. KBLI 36003 businesses pay the standard 22% PPh Badan; Super Tax Deduction (300% R&D / 200% vocational training) may still apply for qualifying expenses.

Which authority issues the KBLI 36003 license?

Not applicable to PT PMA — KBLI 36003 is not viable for foreign-owned entities, so OSS doesn't designate a PMA issuing authority. Smaller-scale registrations (Micro / Small) for Indonesian operators are typically issued at the Regency / City level.

What other permits beyond the NIB does KBLI 36003 need?

Beyond the NIB, no specific auxiliary permits (PB UMKU) are recorded for KBLI 36003. Sector-specific obligations may still apply — verify with the relevant ministry.

What KBLI codes are similar to 36003?

KBLIs in the same subgroup 3600: 36001 (Water Storage, Purification, and Distribution); 36002 (Raw Water Storage and Distribution). These are closely related activities — see the related-codes section below for full list.

KBLI 2020 · 5-digit class

36003Water Treatment Support Activities

Aktivitas Penunjang Treatment Air

Last updated April 24, 2026 · Sourced from OSS Indonesia

This group includes businesses or activities that are directly related to the procurement and distribution of clean water, such as meter reading services, billing, and other supporting activities. Activities in this group include water distribution carried out by individuals such as water vendors using buckets, carts, or tank trucks.

KBLI 36003 at a glance

Citation-ready summary

KBLI code: 36003
Taxonomy version: KBLI 2020
Activity (English): Water Treatment Support Activities
Activity (Indonesian): Aktivitas Penunjang Treatment Air
Category: Water Treatment, Wastewater Treatment, Waste Material Treatment and Recovery, and Remediation Activities
Risk level (Large scale, PMA): None recorded

§ 01

Foreign investment rules

Indonesia's BUPM (Investment Business Fields) regulation places this code into one of five tracks. The track determines whether a foreign investor (PMA) can operate in this activity at all, and under what conditions.

Status · No foreign ownership

Reserved for small Indonesian operators

KBLI 36003 is set up for warungs, smallholders, individual practitioners and similar small businesses — Indonesia's licensing rules only define micro and small business sizes for it. Foreign-owned companies have to register at the Large business size, so even though this code isn't on the official "closed" list, foreign ownership isn't possible in practice. Pick a related KBLI that covers larger operations, or set up a partnership with an Indonesian operator who already holds the licence.

This activity is reserved for small Indonesian operators — think warungs, food stalls, smallholders, individual practitioners. KBLI 36003 only has licensing rules defined for micro and small business sizes. Foreign-owned companies have to register at the Large business size, so this code isn't available to them even though it's not on the "closed" list. Pick a related KBLI that covers larger operations, or ask us about partnering with an Indonesian operator who already holds the licence.

§ 02

Water, Waste & Remediation-specific guidance

Sector context that applies to KBLI 36003 beyond the generic OSS process. Verify with the relevant ministry before committing capital.

Lead regulator

Ministry of Environment & Forestry (KLHK)

·Hazardous-waste handling (B3) requires a separate KLHK permit.
·AMDAL typically required for treatment facilities.

§ 02

What this means for foreign investors

An honest read of the situation, plus the structures that work in practice. We've handled all of these — book a call to walk through your specific plan.

Pathways that work

Move to a different value-chain step
The cleanest path: operate a related but open KBLI. For example, foreign investors blocked from primary commodity production frequently succeed with the processing, distribution, branding, or export-trade codes upstream or downstream of the restricted activity.
Special Economic Zone (KEK) or Free Trade Zone (Batam)
Several restricted codes have higher or full PMA caps inside designated KEK zones (Sanur Health, Lido, Mandalika) or the Batam Free Trade Zone — manufacturing, logistics, and IT services especially. The IUK regime under BP Batam relaxes ownership rules selectively in exchange for export orientation. We assess whether your operation can benefit. See the for the requirements.
Indonesian-owned operating company + commercial agreement
A 100% Indonesian-owned operating entity can hold the restricted licence while you contract with it commercially. We structure these arrangements deliberately — without nominee shareholding, which is unenforceable and increasingly scrutinised.

PMA-viable codes in the same area

These siblings are usable by a foreign-owned PT PMA — they have a Large-scale licensing matrix and aren't on a restricted list. Each has its own context badge so you can pick by trade-off.

Restricted KBLIs need a tailored structure. Book a call and we'll map the right entity, partner, and licensing path for your specific business.

Talk to a corporate-services specialist

Speak to Emerhub

KBLI 36003 needs a tailored structure. Let's design it.

Restricted KBLIs need a structure designed around the restriction — partnership, alternative code, KEK, or commercial arrangement. We've handled all of these. One conversation tells you what works for your plan.

Discuss your structure

36003Water Treatment Support Activities

KBLI 36003 at a glance

Foreign investment rules

Reserved for small Indonesian operators

Water, Waste & Remediation-specific guidance

What this means for foreign investors

Move to a different value-chain step

Special Economic Zone (KEK) or Free Trade Zone (Batam)

Indonesian-owned operating company + commercial agreement

KBLI 36003 needs a tailored structure. Let's design it.

Foreign investment rules

Reserved for small Indonesian operators

Water, Waste & Remediation-specific guidance

What this means for foreign investors

Move to a different value-chain step

Special Economic Zone (KEK) or Free Trade Zone (Batam)

Indonesian-owned operating company + commercial agreement

KBLI 36003 needs a tailored structure. Let's design it.

What is KBLI 36003?

Who needs KBLI 36003?

Why does the code matter?

Under the upcoming KBLI 2025

Carried forward into KBLI 2025

Common questions about KBLI 36003

What is KBLI 36003?

Can foreign investors operate under KBLI 36003?

What is the risk level of KBLI 36003?

What licenses does KBLI 36003 require?

What is the minimum capital for a PT PMA under KBLI 36003?

How long does it take to register a business under KBLI 36003?

Is KBLI 36003 eligible for Indonesian tax incentives?

Which authority issues the KBLI 36003 license?

What other permits beyond the NIB does KBLI 36003 need?

What KBLI codes are similar to 36003?

KBLI 36003 at a glance

Foreign investment rules

Reserved for small Indonesian operators

Water, Waste & Remediation-specific guidance

What this means for foreign investors

Move to a different value-chain step

Special Economic Zone (KEK) or Free Trade Zone (Batam)

Indonesian-owned operating company + commercial agreement

Related codes in Water Treatment

KBLI 36003 needs a tailored structure. Let's design it.

Foreign investment rules

Reserved for small Indonesian operators

Water, Waste & Remediation-specific guidance

What this means for foreign investors

Move to a different value-chain step

Special Economic Zone (KEK) or Free Trade Zone (Batam)

Indonesian-owned operating company + commercial agreement

Related codes in Water Treatment

KBLI 36003 needs a tailored structure. Let's design it.

What is KBLI 36003?

Who needs KBLI 36003?

Why does the code matter?

Under the upcoming KBLI 2025

Carried forward into KBLI 2025

Common questions about KBLI 36003

What is KBLI 36003?

Can foreign investors operate under KBLI 36003?

What is the risk level of KBLI 36003?

What licenses does KBLI 36003 require?

What is the minimum capital for a PT PMA under KBLI 36003?

How long does it take to register a business under KBLI 36003?

Is KBLI 36003 eligible for Indonesian tax incentives?

Which authority issues the KBLI 36003 license?

What other permits beyond the NIB does KBLI 36003 need?

What KBLI codes are similar to 36003?