Reserves Cal­cu­la­tion is a pro­fes­sion­al ser­vice aimed at deter­min­ing the quan­ti­ty, qual­i­ty, and eco­nom­ic via­bil­i­ty of min­er­al resources with­in a deposit. The cal­cu­la­tion is based on geo­log­i­cal data, tech­ni­cal para­me­ters, mar­ket con­di­tions, and reg­u­la­to­ry require­ments, and serves as the foun­da­tion for deci­sion-mak­ing in explo­ration, min­ing, and invest­ment plan­ning.

Reserves cal­cu­la­tion inte­grates geo­log­i­cal inter­pre­ta­tion with eco­nom­ic analy­sis to assess whether min­er­al extrac­tion is tech­ni­cal­ly fea­si­ble and eco­nom­i­cal­ly jus­ti­fied. The process includes eval­u­a­tion of reserve vol­umes, min­er­al qual­i­ty, spa­tial dis­tri­b­u­tion with­in the sub­soil, as well as extrac­tion, pro­cess­ing, and trans­porta­tion costs.

This ser­vice is a key ele­ment of min­ing project plan­ning and is used to sup­port fea­si­bil­i­ty stud­ies, invest­ment assess­ments, and appli­ca­tions for spe­cial per­mits.

Reserves Cal­cu­la­tion for min­er­al deposits is per­formed at dif­fer­ent stages of sub­soil explo­ration, from ear­ly prospect­ing to ful­ly explored deposits pre­pared for indus­tri­al devel­op­ment. Depend­ing on the lev­el of geo­log­i­cal knowl­edge and data reli­a­bil­i­ty, the scope and accu­ra­cy of cal­cu­la­tions vary.

In mod­ern eco­nom­ic con­di­tions, recal­cu­la­tion of reserves is often required due to changes in mar­ket prices, min­ing tech­nolo­gies, pro­duc­tion costs, cut­off grades, or reg­u­la­to­ry require­ments. Re-eval­u­a­tion also allows iden­ti­fi­ca­tion of unprof­itable or non-mar­ketable reserves and opti­miza­tion of resource uti­liza­tion.

To ensure reli­a­bil­i­ty, reserves cal­cu­la­tion must account for geo­log­i­cal uncer­tain­ty, tech­ni­cal con­straints, and eco­nom­ic risks, and should be updat­ed as new data become avail­able.

Depend­ing on the stage of geo­log­i­cal explo­ration, reserves cal­cu­la­tion may be per­formed at the fol­low­ing lev­els:

Detailed Reserves Cal­cu­la­tion (GEE‑1) involves com­pre­hen­sive analy­sis of geo­log­i­cal, tech­ni­cal, and eco­nom­ic fac­tors affect­ing min­er­al extrac­tion. It includes:

• Geo­log­i­cal char­ac­ter­i­za­tion of the deposit – struc­ture, mor­phol­o­gy, thick­ness, over­bur­den, and min­er­al­iza­tion fea­tures.
• Reserve esti­ma­tion – cal­cu­la­tion of reserve vol­umes, grades, and spa­tial dis­tri­b­u­tion.
• Tech­ni­cal para­me­ters – min­ing meth­ods, pro­cess­ing schemes, and trans­port con­di­tions.
• Eco­nom­ic assess­ment – cap­i­tal and oper­at­ing costs, prof­itabil­i­ty, and project effi­cien­cy.
• Risk analy­sis – geo­log­i­cal, tech­ni­cal, mar­ket, and price-relat­ed risks.

Pre­lim­i­nary Reserves Cal­cu­la­tion (GEE‑2) is con­duct­ed at ear­ly explo­ration stages and is based on lim­it­ed geo­log­i­cal and geo­chem­i­cal data. It pro­vides an ini­tial esti­mate of resource poten­tial and sup­ports deci­sions on fur­ther explo­ration invest­ments.

Ini­tial Reserves Cal­cu­la­tion (GEE‑3) rep­re­sents a screen­ing-lev­el assess­ment of a prospec­tive area. It relies on sur­face obser­va­tions, avail­able geo­log­i­cal infor­ma­tion, and geo­phys­i­cal sur­veys to iden­ti­fy the pos­si­ble pres­ence of min­er­al resources and assess explo­ration poten­tial.

In strict com­pli­ance with the Reg­u­la­tion on the Pro­ce­dure for State Exam­i­na­tion and Eval­u­a­tion of Min­er­al Reserves, reserves cal­cu­la­tion reports are sub­ject to manda­to­ry state exper­tise by the State Com­mis­sion on Min­er­al Resources of Ukraine.

Depend­ing on the degree of geo­log­i­cal explo­ration and indus­tri­al sig­nif­i­cance, the exper­tise may result in:

• approval of reserves pre­pared for fur­ther geo­log­i­cal explo­ration,
• approval of reserves of explored deposits intend­ed for indus­tri­al extrac­tion.

Val­i­dat­ed reserves cal­cu­la­tion is a pre­req­ui­site for obtain­ing a spe­cial per­mit for min­er­al extrac­tion and ensures long-term, eco­nom­i­cal­ly sound, and envi­ron­men­tal­ly respon­si­ble min­ing oper­a­tions.

Reserves Cal­cu­la­tion acts as a prac­ti­cal link between geol­o­gists, sub­soil users, and investors. A well-pre­pared cal­cu­la­tion pro­vides a sol­id basis for busi­ness plan­ning, allow­ing investors to assess required cap­i­tal, project prof­itabil­i­ty, and oper­a­tional lifes­pan.

Insti­tute of Geol­o­gy pro­vides pro­fes­sion­al Reserves Cal­cu­la­tion and Recal­cu­la­tion ser­vices in full com­pli­ance with Ukrain­ian reg­u­la­tions and inter­na­tion­al best prac­tices. For details regard­ing this or oth­er ser­vices, please con­tact us at +38 (044) 465–75-86, +38 (067) 286–84-14, or email ins­geoua