KEYSTONE INVESTORS PTE LTD

Position in MTRN — MATERION Corp

CIK 1926253 SINGAPORE, U0

Position in MTRN

as of Jun 30, 2026 · filed Aug 14, 2026 Compact

Position Value

$1,625,236

New position

Shares Held

5,465

first reported quarter

Ownership

0.026%

of shares outstanding

% of Portfolio

0.09%

of 13F equity value

Holder Rank

#151

of 400 holders

Holding Since

Jun 2026

1 quarter on record

Voting authority Sole 100% Shared 0% None 0%

Basic Materials · as of Jun 30, 2026

KEYSTONE INVESTORS PTE LTD holds $22,478,596 across 4 Other Industrial Metals & Mining names. MTRN ranks #3 (7.2% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	SGML	Sigma Lithium Corp	1,303,675	$16,491,488
2	LAR	Lithium Argentina AG	403,083	$3,333,496
3	MTRN	MATERION Corp This page	5,465	$1,625,236
4	ALM	Almonty Industries Inc.	62,100	$1,028,376

1 filing row on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-06-30	$1,625,236	5,465	—	Shares	Sole	2026-08-14
No filing history on record for this holder in this stock.