Private company
Who owns PT LyondellBasell Advanced Polyolefins
One company in the researched set discloses a stake in PT LyondellBasell Advanced Polyolefins, none of it sized by anyone who discloses it. PT LyondellBasell Advanced Polyolefins is private, so no 13F reports it: a 13F covers exchange listed positions only. These figures exist because each holder disclosed the stake in its own filings.
PT LyondellBasell Advanced Polyolefins - Profile
- Type
- joint venture
- Based in
- Indonesia
PT LyondellBasell Advanced Polyolefins is an Indonesian plastics compounding joint venture that runs a manufacturing site in East Java, at Gempol in the Pasuruan district, producing masterbatches and custom performance colour concentrates that other plastics processors blend into packaging, automotive, construction, electrical and agricultural products. The venture was formed as PT A. Schulman Plastics Indonesia, pairing the American compounder A. Schulman with the local plastics group P.T. Prima Polycon Indah, which holds the minority 35 percent, and it took its present name after LyondellBasell bought A. Schulman in 2018 and folded the business into its Advanced Polymer Solutions segment. A companion entity, PT LyondellBasell Advanced Polyolefins Commercial, handles the sales side of the same Indonesian operation.
Source
PT LyondellBasell Advanced Polyolefins files nothing with the SEC, so none of this comes from a filer record. The description was written for this site in August 2026 from A. Schulman Inc. business description, Exhibit 99.1 (SEC EDGAR), LyondellBasell Industries N.V. 2025 Form 10-K, Exhibit 21 list of subsidiaries (SEC EDGAR) and LyondellBasell Indonesia locations page. The ownership figures below come from the holders' filings instead, and are sourced row by row.
The disclosed stakes
One row per position. Where a holder reports the same company in two share classes, both rows are shown rather than summed, because the class is part of a position's identity.
Where each figure comes from
A private stake has no ownership form behind it, so the source is always the holder's own filing or disclosure. Anything modelled says so, with the arithmetic.
- LyondellBasell Industries N.V.. Exhibit 21.1 to the FY2025 10-K (filed 20 Feb 2026) states that A. Schulman International Inc. owns a 65% interest in PT LyondellBasell Advanced Polyolefins. This is a 65 percent ownership interest, written here as the number 65, not as a fraction of 100. LyondellBasell's balance sheet carries a single combined 'Equity investments' line ($3,963 million at 31 Dec 2025 per the 10-K; $3,875 million at 30 Jun 2026 per the most recent 10-Q) covering all equity-method investees together, so no individual carrying value is disclosed for this venture: value_usd is null. sourcesource 2
What this page is not
It is not a complete register. It lists the holders who happen to be inside the researched set and disclosed the stake themselves. A private company can have many other shareholders, and nothing here rules them out: venture investors, founders and employees usually appear in no public filing at all. Percentages are of PT LyondellBasell Advanced Polyolefins where a holder stated one, and are missing where no holder did.