Central Lime Project
PNG’s first integrated, export-ready lime facility – fully funded with development underway
The Central Lime Project will produce quicklime and hydrated lime for rapidly growing markets in PNG and Asia-Pacific.
Located on PNG’s coast, 24 km from Port Moresby, the Central Lime Project is fully integrated with the Company’s high quality lime resource and deep-draft export wharf facility. It is just 7km from the Exxon Mobil-operated PNG LNG facility, and is being built in a PNG Government-designated special economic zone that offers incentives to attract downstream manufacturing industries that will create long term demand for lime and related products.
The integration of the limestone resource, downstream industries and export facilities means the Central Lime Project will be a low cost operation with ready access to major markets.
Stage 1 configuration
2 x 600tpd high-efficiency quicklime kilns
Wharf access
100%-owned, to be Handymax-capable, construction underway
End user sectors
gold & base metal processing, water treatment, construction, agriculture, renewable and battery metals
Production start
H1 2027
Resources
382Mt JORC resource across two deposits (at least 50 years of mine life in an expansion scenario)
Highly scalable
with quicklime expansions already planned
Brownfield clinker & cement expansion opportunity
development being progressed with PNG Government
Under Construction
Our flagship quicklime project recently announced FID and the cement project is progressing
Fully Funded
The stage 1 quicklime project is fully equity funded
Strategic Location
Strategic ‘in-country’ location drives a significant cost advantage relative to existing competitors from Asia
Large-Scale, High-Quality Resource
The Project sits within Mining Licence ML526 and comprises two major deposits, Kido and Rea Rea, both of which form large coastal topographic features immediately adjacent to deep-water access.
The deposits are composed of extensive, laterally continuous sequences of biomicritic limestone. These carbonate sequences are exceptionally homogenous in grade and thickness, representing broad sedimentary deposition rather than isolated or structurally complex occurrences.
Geological interpretation has incorporated drill core and surface mapping, confirming strong consistency of grade and mineralogy across the deposits. Weathering surfaces and the limestone contact with underlying marl have been defined during resource modelling.
The limestone occurs from surface, with minimal overburden, and extends over strike lengths exceeding 1,000 metres in a NW–SE orientation.
The maiden JORC Mineral Resource, announced in 2018, totalled 382 million tonnes across the two deposits and importantly, confirmed the deposits as large-scale, high-quality limestone resources with excellent chemical suitability for lime and cement production.
Strong Support
The Project has the full support of PNG’s national and local governments and is located in a Special Economic Zone, which allows it access to a range of concessions including tax relief and duty exemptions that contribute significantly to its economics.
A positive Final Investment Decision was made in August 2025, with PLC targeting first quicklime product in H1 2027.
In preparation for the start of commercial operations, Pacific Lime and cement has established its first sales of branded quicklime using a high quality product form an alliance partner. These sales are establishing our brand and demonstrating the reliability of our supply chain, as we continue to demonstrate to customers our progress in delivering quicklime from the Central Lime Project.
