Barclays PLC (LSE: BARC) has increased its shareholding in Central Asia Metals PLC (LSE: CAML) to 5.57% of total voting rights, according to a regulatory filing.

The threshold was crossed on Wednesday, with Barclays formally notifying Central Asia Metals of the position change on Friday.

The expanded stake is structured across two components, with 5.38% held through voting rights attached to shares and 0.19% through financial instruments.

Barclays Capital Securities Limited, a wholly-owned subsidiary of Barclays Bank PLC, directly holds 9,559,777 voting rights representing the 5.38% share-based portion of the stake.

The financial instruments component includes 100,219 voting rights through a right to recall and 230,259 voting rights through portfolio swaps settled in cash.

Those portfolio swaps carry expiry dates ranging between November 2026 and April 2027, adding a degree of near-term structural complexity to the overall position.

The combined holding amounts to 9,890,255 voting rights in total across both the direct share position and financial instruments.

This represents a meaningful step up from Barclays’ previous regulatory notification, which disclosed a position of 5.21% in Central Asia Metals.

That prior position consisted of 4.98% held through shares and 0.23% through financial instruments, compared to the current 5.38% and 0.19% split respectively.

Central Asia Metals is a London-listed base metals producer with operations focused on copper and zinc assets across Central Asia, making it a niche but notable holding for a major international bank.

The increased position signals growing institutional interest in the mining and metals sector, where supply constraints and shifting global trade dynamics have drawn renewed attention from large financial players.

Barclays has not publicly disclosed the strategic rationale behind the stake increase, and the filing reflects a standard regulatory disclosure triggered by the crossing of a reporting threshold.