Commitments	3 Months Ended
Mar. 31, 2026
Commitments [Abstract]
Commitments	17. Commitments (a) Mineral Leases The Company leases mineral interests and surface rights from land owners under various terms and royalty rates. The future minimum royalties and lease rental payments under these leases as of March 31, 2026 were as follows: (in US$ thousands) Amount Year ending December 31, 2026 $ 3,492 2027 3,893 2028 3,861 2029 3,854 2030 7,371 Thereafter 19,526 Total $ 41,997 Mineral leases are not in scope of ASC 842 and continue to be accounted for under the guidance in ASC 932, Extractive Activities – Mining. (b) Other commitments As of March 31, 2026, purchase commitments for capital expenditures were $ 5.8 million, all of which is obligated within the next twelve months. In Australia, the Company has generally secured the ability to transport coal through rail contracts and coal export terminal contracts that are primarily funded through take-or-pay arrangements with terms ranging up to 12 years . In the U.S., the Company typically negotiates its rail and coal terminal access on an annual basis. As of March 31, 2026, these Australian and U.S. commitments under take-or-pay arrangements totaled $ 595.0 million, of which the Company is obliged to pay approximately $ 101.8 million within the next twelve months.

17.

Commitments

(a)

Mineral Leases

The

Company

leases

mineral

interests

and

surface

rights

from

land

owners

under

various

terms

and

royalty

rates. The future

minimum royalties

and lease

rental payments

under these

leases as

of March

31, 2026

were

as follows:

(in US$ thousands)

Amount

Year ending

December 31,

2026

3,492

2027

3,893

2028

3,861

2029

3,854

2030

7,371

Thereafter

19,526

Total

41,997

Mineral leases are not

in scope of ASC

842 and continue to

be accounted for

under the guidance in

ASC 932,

Extractive Activities – Mining.

(b)

Other commitments

As of March 31, 2026, purchase commitments for capital expenditures were $

5.8

million, all of which is obligated

within the next twelve months.

In Australia, the

Company has generally

secured the ability

to transport coal

through rail contracts

and coal export

terminal contracts that are primarily funded

through take-or-pay arrangements with terms ranging up to

12 years

In the U.S., the Company

typically negotiates its rail

and coal terminal access

on an annual basis.

As of March

31,

2026,

these

Australian

and

U.S.

commitments

under

take-or-pay

arrangements

totaled

595.0

million,

which

the Company is obliged to pay approximately $

101.8

million within the next twelve months.