20251010_ARCI_Laporan Bulanan Aktivitas Eksplorasi_31966560_lamp1.pdf

                                                                       No: 0054/ARCHI/10/2025/G
PT Archi Indonesia Tbk. (the ”Company” or “ARCI”) owns 100% of Toka Tindung Gold Mine,
a gold mine located approximately 35 kilometers northeast of Manado, North Sulawesi,
through the Company’s wholly-owned subsidiaries, PT Meares Soputan Mining (“MSM”) and
PT Tambang Tondano Nusajaya (“TTN”).
Toka Tindung Gold Mine consists of two Contract of Works (“CoWs”) covering 39,817
hectares, which cover into two administration areas in North Sulawesi, North Minahasa and
Bitung City districts (Figure 1). The CoWs are valid until 2041 and held by MSM and TTN.
Pursuant to the Mining Law Amendment, MSM and TTN have been guaranteed two times
extensions of the CoWs in the form of Special Mining Business License/Izin Usaha
Pertambangan Khusus (“IUPK”), each for maximum period of 10 years.
                Figure 1. Map Location of MSM and TTN’s Contract of Works




Exploration activities carried out by the Company, through its subsidiaries, which are MSM
and TTN, from January to September 2025 were focused on exploration and drilling activities
to increase resources and reserves in Eastern Corridor Area and in Western Corridor Area.

                                                                            No: 0054/ARCHI/10/2025/G
Below are the details of drilling activities from January to September 2025 with total 297 holes
and 63,174 meters were as follow:

   •    In the first quarter, ARCI had conducted drilling at 84 holes with a total depth of 19,833
        meters.
   •    In the second quarter, ARCI had conducted drilling at 106 holes with a total depth of
        20,742 meters.
   •    In the third quarter, ARCI had conducted drilling at 107 holes with a total depth of
        22,599 meters.
Drilling activities for gold Resource Definition and Exploration, involved Diamond Drilling
(“DD”) and Reverse Circulation (“RC”) drilling methods, conducted by PT Maxidrill Indonesia.
Details number of drill programs by project and by month, are shown in Table 1.


Table 1. Drilling Results Details for the Period January to September 2025 Based on Prospects
and Drilling Types

                                 Diamond Drilling (DD)             Reverse Circulation (RC)
          Period
                              Number of Drill        Drilling     Number of Drill       Drilling
                                 Holes               Meters          Holes              Meters

 1st Quarter 2025                     34              10,761              50              9.072
 2nd Quarter 2025                     43              10,347              63             10.395
 3rd Quarter 2025                     44               9,592              63             13.007
 TOTAL                               121              30,700             176             32.474


Total Exploration activities cost from January 2025 to September 2025 US$7,124,792



Based on the drilling results carried out by the Company from January to September 2025,
the following is a summary of the significant discoveries:

   1.   Interval of 18.70m with a gold grade of 6.72 g/t at a depth of 153.70m - 172.40m
   2.   Interval of 11.10m with a gold grade of 13.66 g/t at a depth of 218.40m - 229.50m
   3.   Interval of 5.40m with a gold grade of 26.57 g/t at a depth of 232.40m - 237.80m
   4.   Interval of 28.65m with a gold grade of 4.59 g/t at a depth of 166.75m - 195.40m
   5.   Interval of 37.80m with a gold grade of 7.20 g/t at a depth of 178.70m - 216.50m
   6.   Interval of 19.00m with a gold grade of 9.15 g/t at a depth of 174.00m – 193.00m
   7.   Interval of 23.00m with a gold grade of 5.93 g/t at a depth of 190.00m – 213.00m