IBOV 177,284 ▼ 0.61% IPSA 10,421 ▼ 0.58% IPC MEX 67,977 ▼ 1.78% MERVAL 2,707,869 ▼ 1.44% COLCAP 2,118 ▼ 0.22% BVL PERÚ 19,767 ▲ 0.37% USD/BRL 5.05 ▼ 0.01% USD/MXN 17.33 ▲ 0.10% USD/CLP 908.88 ▲ 1.38% USD/COP 3,791 ▲ 0.09% USD/PEN 3.43 ▼ 0.01% USD/ARS 1,395 — 0.00% USD/UYU 40.07 ▲ 1.92% USD/PYG 6,066 ▲ 1.38% USD/BOB 6.86 ▲ 1.77% USD/DOP 59.15 ▼ 0.50% USD/CRC 451.24 ▲ 1.96% USD/GTQ 7.62 ▲ 2.19% USD/HNL 26.61 ▲ 0.36% USD/NIO 36.62 ▲ 0.26% USD/VES 513.89 ▼ 0.66% USD/PAB 1.00 ▲ 2.16% USD/BZD 2.00 ▲ 1.59% USD/JMD 157.28 ▲ 0.43% USD/TTD 6.74 ▲ 1.22% EUR/BRL 5.89 ▲ 0.19% BRENT 109.26 ▲ 3.35% WTI 101.02 ▼ 0.15% IRON ORE 161.91 — — COPPER 6.30 ▼ 4.15% GOLD 4,562 ▼ 2.48% SILVER 77.55 ▼ 8.67% SOY 1,177 ▲ 0.21% CORN 455.75 ▲ 0.94% WHEAT 635.75 ▼ 1.74% COFFEE 258.75 ▼ 12.12% SUGAR 14.78 ▼ 1.40% ORANGE JUICE 170.05 ▼ 6.21% COTTON 80.33 ▼ 4.30% COCOA 4,109 ▼ 1.91% BEEF 247.93 ▼ 1.65% CATTLE 361.45 ▼ 1.67% LITHIUM 84.08 ▼ 3.30% PETR4 45.47 ▲ 1.04% VALE3 83.50 ▲ 0.76% ITUB4 39.70 ▼ 1.73% BBDC4 17.69 ▼ 0.84% ABEV3 15.69 ▼ 0.51% BBAS3 20.70 ▼ 0.29% B3SA3 16.70 ▼ 1.36% WEGE3 43.13 ▼ 1.35% PRIO3 68.80 ▲ 2.24% SUZB3 41.70 ▼ 2.16% RENT3 42.98 ▼ 2.18% AZZA3 19.05 ▲ 1.06% CSAN3 4.41 ▼ 5.16% RAIZ4 0.45 ▲ 2.27% PCAR3 2.26 ▼ 1.74% GMAT3 4.34 ▲ 1.17% PSSA3 47.92 ▼ 1.60% CVCB3 1.81 ▼ 4.23% POSI3 3.88 ▼ 2.27% SLCE3 17.19 ▼ 0.87% NATU3 9.94 ▲ 1.53% BRKM5 12.21 ▲ 0.49% RANI3 7.85 ▼ 0.25% CSNA3 6.42 ▼ 3.75% CMIN3 4.72 ▼ 1.05% USIM5 9.12 ▼ 7.79% GGBR4 23.34 ▼ 1.02% ENEV3 25.06 ▼ 3.43% NEOE3 33.80 — 0.00% CPFE3 44.52 ▼ 1.53% CMIG4 11.27 ▼ 0.09% EQTL3 38.59 ▼ 0.54% LREN3 13.55 ▼ 1.24% VIVT3 35.52 ▼ 0.20% RAIL3 14.97 ▼ 1.96% KLABIN 16.43 ▼ 2.55% RAIA DROGASIL 19.59 ▼ 0.25% RDOR3 34.84 ▲ 0.26% HAPV3 12.45 ▼ 6.11% FLRY3 15.60 ▼ 2.26% SMTO3 18.25 ▼ 0.82% UGPA3 29.13 ▼ 1.42% VBBR3 33.12 ▼ 0.81% BBSE3 34.12 ▼ 1.04% BPAC11 54.50 ▼ 1.61% CURY3 30.37 ▼ 0.75% AERI3 2.42 ▼ 0.41% VIVARA 22.94 ▼ 0.26% COMPASS 25.90 ▼ 1.89% VAMOS 3.41 ▼ 2.29% SANB11 26.92 ▼ 0.81% ASAI3 8.50 ▼ 1.05% SBSP3 29.03 ▼ 1.66% WALMEX 54.82 ▲ 0.53% GMEXICO 202.10 ▼ 4.45% FEMSA 210.39 ▼ 0.01% CEMEX 21.82 ▼ 3.71% GFNORTE 184.04 ▼ 0.98% BIMBO 59.19 ▲ 0.27% TELEVISA 9.94 ▲ 1.43% AMX 23.13 ▼ 1.11% GAP 413.32 ▼ 1.41% ASUR 296.14 ▼ 1.66% OMA 222.96 ▼ 0.70% KOF 180.84 ▼ 0.13% GRUMA 298.23 ▲ 0.12% KIMBER 38.28 ▼ 0.55% SQM-B 76,590 ▼ 2.06% COPEC 6,145 ▼ 0.08% BSANTANDER 68.99 ▼ 0.16% FALABELLA 5,500 ▲ 1.08% ENELAM 75.75 ▼ 0.89% CENCOSUD 2,060 ▼ 3.06% CMPC 1,055 ▼ 0.94% BANCO CHILE 163.70 ▲ 0.13% LATAM AIR 21.54 ▼ 2.53% YPF 65,000 ▼ 0.46% GGAL 6,060 ▼ 2.02% PAMPA 4,720 ▼ 0.26% TXAR 615.00 ▲ 0.49% ALUAR 940.50 ▼ 0.42% TGS 8,750 ▼ 0.62% CEPU 2,049 ▼ 3.17% MIRGOR 17,225 ▼ 3.23% COME 42.52 ▼ 1.51% LOMA NEGRA 3,105 ▼ 1.82% BYMA 272.25 ▼ 2.77% TELECOM ARG 3,505 ▼ 4.24% ECOPETROL 13.11 ▼ 0.87% BANCOLOMBIA 63.16 ▼ 1.83% GRUPO AVAL 4.01 ▼ 5.20% CREDICORP 316.31 ▼ 3.47% SOUTHERN COPPER 176.78 ▼ 6.22% BUENAVENTURA 34.29 ▼ 7.70% MERCADOLIBRE 1,547 ▼ 3.77% NUBANK 12.19 ▼ 5.72% XP 17.47 ▼ 0.74% PAGSEGURO 8.86 ▼ 1.66% STONE 9.61 ▼ 0.93% GLOBANT 38.87 ▲ 14.06% TECNOGLASS 38.61 ▼ 5.90% GAP AIRPORT 238.45 ▼ 2.15% ASUR 296.14 ▼ 1.66% OMA AIRPORT 102.84 ▼ 1.57% AMX ADR 26.59 ▼ 1.85% FEMSA ADR 121.38 ▼ 0.70% CEMEX ADR 12.56 ▼ 4.60% PETROBRAS ADR 19.93 ▲ 0.76% VALE ADR 16.32 ▼ 1.57% ITAU ADR 7.84 ▼ 3.21% SANTANDER BR 5.34 ▼ 2.11% AMBEV ADR 3.07 — 0.00% CSN 1.26 ▼ 6.67% GERDAU 4.61 ▼ 2.12% LATAM ADR 46.91 ▼ 4.79% BTC 78,052 ▼ 1.28% ETH 2,180 ▼ 1.96% SOL 86.23 ▼ 3.33% XRP 1.41 ▼ 1.40% BNB 652.15 ▼ 2.97% ADA 0.25 ▼ 2.56% DOGE 0.11 ▼ 3.56% AVAX 9.25 ▼ 3.01% LINK 9.69 ▼ 3.74% DOT 1.26 ▼ 3.98% LTC 56.06 ▼ 2.49% BCH 416.05 ▼ 2.45% TRX 0.35 ▲ 0.74% XLM 0.15 ▼ 2.20% HBAR 0.09 ▼ 1.86% NEAR 1.49 ▼ 3.28% ATOM 2.05 ▲ 6.22% AAVE 89.61 ▼ 3.48% SELIC 14.50% EMBRAER 71.25 ▼ 1.76% EMBRAER ADR 55.76 ▼ 5.04% JBS 13.48 ▼ 3.58% JBS BDR 68.50 ▼ 1.72% MBRF3 17.42 — 0.00% MBRFY 3.43 ▼ 2.83% INTER 5.85 ▼ 3.47% EGX 53,155 ▼ 0.49% USD/ZAR 16.67 ▲ 1.27% USD/NGN 1,367 ▼ 0.04% NIKKEI 61,409 ▼ 1.99% CSI300 4,860 ▼ 1.12% HSI 25,963 ▼ 1.62% NIFTY 23,644 ▼ 0.19% KOSPI 7,493 ▼ 6.12% JCI 6,723 ▼ 1.98% USD/JPY 158.73 ▲ 0.24% USD/CNY 6.8087 ▲ 0.36% DAX 23,951 ▼ 2.07% CAC 7,953 ▼ 1.60% FTSE 10,195 ▼ 1.71% MIB 49,116 ▼ 1.87% IBEX 17,623 ▼ 1.05% STOXX 606.92 ▼ 1.48% EUR/USD 1.1631 ▼ 0.34% GBP/USD 1.3326 ▼ 0.57% SPX 7,409 ▼ 1.24% DJI 49,526 ▼ 1.07% NDX 29,125 ▼ 1.54% RUT 2,793 ▼ 2.44% TSX 33,833 ▼ 1.27% VIX 18.43 ▲ 6.78% USD/CAD 1.3749 ▲ 0.24% US10Y 4.5950 ▲ 3.00% IBOV 177,284 ▼ 0.61% IPSA 10,421 ▼ 0.58% IPC MEX 67,977 ▼ 1.78% MERVAL 2,707,869 ▼ 1.44% COLCAP 2,118 ▼ 0.22% BVL PERÚ 19,767 ▲ 0.37% USD/BRL 5.05 ▼ 0.01% USD/MXN 17.33 ▲ 0.10% USD/CLP 908.88 ▲ 1.38% USD/COP 3,791 ▲ 0.09% USD/PEN 3.43 ▼ 0.01% USD/ARS 1,395 — 0.00% USD/UYU 40.07 ▲ 1.92% USD/PYG 6,066 ▲ 1.38% USD/BOB 6.86 ▲ 1.77% USD/DOP 59.15 ▼ 0.50% USD/CRC 451.24 ▲ 1.96% USD/GTQ 7.62 ▲ 2.19% USD/HNL 26.61 ▲ 0.36% USD/NIO 36.62 ▲ 0.26% USD/VES 513.89 ▼ 0.66% USD/PAB 1.00 ▲ 2.16% USD/BZD 2.00 ▲ 1.59% USD/JMD 157.28 ▲ 0.43% USD/TTD 6.74 ▲ 1.22% EUR/BRL 5.89 ▲ 0.19% BRENT 109.26 ▲ 3.35% WTI 101.02 ▼ 0.15% IRON ORE 161.91 — — COPPER 6.30 ▼ 4.15% GOLD 4,562 ▼ 2.48% SILVER 77.55 ▼ 8.67% SOY 1,177 ▲ 0.21% CORN 455.75 ▲ 0.94% WHEAT 635.75 ▼ 1.74% COFFEE 258.75 ▼ 12.12% SUGAR 14.78 ▼ 1.40% ORANGE JUICE 170.05 ▼ 6.21% COTTON 80.33 ▼ 4.30% COCOA 4,109 ▼ 1.91% BEEF 247.93 ▼ 1.65% CATTLE 361.45 ▼ 1.67% LITHIUM 84.08 ▼ 3.30% PETR4 45.47 ▲ 1.04% VALE3 83.50 ▲ 0.76% ITUB4 39.70 ▼ 1.73% BBDC4 17.69 ▼ 0.84% ABEV3 15.69 ▼ 0.51% BBAS3 20.70 ▼ 0.29% B3SA3 16.70 ▼ 1.36% WEGE3 43.13 ▼ 1.35% PRIO3 68.80 ▲ 2.24% SUZB3 41.70 ▼ 2.16% RENT3 42.98 ▼ 2.18% AZZA3 19.05 ▲ 1.06% CSAN3 4.41 ▼ 5.16% RAIZ4 0.45 ▲ 2.27% PCAR3 2.26 ▼ 1.74% GMAT3 4.34 ▲ 1.17% PSSA3 47.92 ▼ 1.60% CVCB3 1.81 ▼ 4.23% POSI3 3.88 ▼ 2.27% SLCE3 17.19 ▼ 0.87% NATU3 9.94 ▲ 1.53% BRKM5 12.21 ▲ 0.49% RANI3 7.85 ▼ 0.25% CSNA3 6.42 ▼ 3.75% CMIN3 4.72 ▼ 1.05% USIM5 9.12 ▼ 7.79% GGBR4 23.34 ▼ 1.02% ENEV3 25.06 ▼ 3.43% NEOE3 33.80 — 0.00% CPFE3 44.52 ▼ 1.53% CMIG4 11.27 ▼ 0.09% EQTL3 38.59 ▼ 0.54% LREN3 13.55 ▼ 1.24% VIVT3 35.52 ▼ 0.20% RAIL3 14.97 ▼ 1.96% KLABIN 16.43 ▼ 2.55% RAIA DROGASIL 19.59 ▼ 0.25% RDOR3 34.84 ▲ 0.26% HAPV3 12.45 ▼ 6.11% FLRY3 15.60 ▼ 2.26% SMTO3 18.25 ▼ 0.82% UGPA3 29.13 ▼ 1.42% VBBR3 33.12 ▼ 0.81% BBSE3 34.12 ▼ 1.04% BPAC11 54.50 ▼ 1.61% CURY3 30.37 ▼ 0.75% AERI3 2.42 ▼ 0.41% VIVARA 22.94 ▼ 0.26% COMPASS 25.90 ▼ 1.89% VAMOS 3.41 ▼ 2.29% SANB11 26.92 ▼ 0.81% ASAI3 8.50 ▼ 1.05% SBSP3 29.03 ▼ 1.66% WALMEX 54.82 ▲ 0.53% GMEXICO 202.10 ▼ 4.45% FEMSA 210.39 ▼ 0.01% CEMEX 21.82 ▼ 3.71% GFNORTE 184.04 ▼ 0.98% BIMBO 59.19 ▲ 0.27% TELEVISA 9.94 ▲ 1.43% AMX 23.13 ▼ 1.11% GAP 413.32 ▼ 1.41% ASUR 296.14 ▼ 1.66% OMA 222.96 ▼ 0.70% KOF 180.84 ▼ 0.13% GRUMA 298.23 ▲ 0.12% KIMBER 38.28 ▼ 0.55% SQM-B 76,590 ▼ 2.06% COPEC 6,145 ▼ 0.08% BSANTANDER 68.99 ▼ 0.16% FALABELLA 5,500 ▲ 1.08% ENELAM 75.75 ▼ 0.89% CENCOSUD 2,060 ▼ 3.06% CMPC 1,055 ▼ 0.94% BANCO CHILE 163.70 ▲ 0.13% LATAM AIR 21.54 ▼ 2.53% YPF 65,000 ▼ 0.46% GGAL 6,060 ▼ 2.02% PAMPA 4,720 ▼ 0.26% TXAR 615.00 ▲ 0.49% ALUAR 940.50 ▼ 0.42% TGS 8,750 ▼ 0.62% CEPU 2,049 ▼ 3.17% MIRGOR 17,225 ▼ 3.23% COME 42.52 ▼ 1.51% LOMA NEGRA 3,105 ▼ 1.82% BYMA 272.25 ▼ 2.77% TELECOM ARG 3,505 ▼ 4.24% ECOPETROL 13.11 ▼ 0.87% BANCOLOMBIA 63.16 ▼ 1.83% GRUPO AVAL 4.01 ▼ 5.20% CREDICORP 316.31 ▼ 3.47% SOUTHERN COPPER 176.78 ▼ 6.22% BUENAVENTURA 34.29 ▼ 7.70% MERCADOLIBRE 1,547 ▼ 3.77% NUBANK 12.19 ▼ 5.72% XP 17.47 ▼ 0.74% PAGSEGURO 8.86 ▼ 1.66% STONE 9.61 ▼ 0.93% GLOBANT 38.87 ▲ 14.06% TECNOGLASS 38.61 ▼ 5.90% GAP AIRPORT 238.45 ▼ 2.15% ASUR 296.14 ▼ 1.66% OMA AIRPORT 102.84 ▼ 1.57% AMX ADR 26.59 ▼ 1.85% FEMSA ADR 121.38 ▼ 0.70% CEMEX ADR 12.56 ▼ 4.60% PETROBRAS ADR 19.93 ▲ 0.76% VALE ADR 16.32 ▼ 1.57% ITAU ADR 7.84 ▼ 3.21% SANTANDER BR 5.34 ▼ 2.11% AMBEV ADR 3.07 — 0.00% CSN 1.26 ▼ 6.67% GERDAU 4.61 ▼ 2.12% LATAM ADR 46.91 ▼ 4.79% BTC 78,052 ▼ 1.28% ETH 2,180 ▼ 1.96% SOL 86.23 ▼ 3.33% XRP 1.41 ▼ 1.40% BNB 652.15 ▼ 2.97% ADA 0.25 ▼ 2.56% DOGE 0.11 ▼ 3.56% AVAX 9.25 ▼ 3.01% LINK 9.69 ▼ 3.74% DOT 1.26 ▼ 3.98% LTC 56.06 ▼ 2.49% BCH 416.05 ▼ 2.45% TRX 0.35 ▲ 0.74% XLM 0.15 ▼ 2.20% HBAR 0.09 ▼ 1.86% NEAR 1.49 ▼ 3.28% ATOM 2.05 ▲ 6.22% AAVE 89.61 ▼ 3.48% SELIC 14.50% EMBRAER 71.25 ▼ 1.76% EMBRAER ADR 55.76 ▼ 5.04% JBS 13.48 ▼ 3.58% JBS BDR 68.50 ▼ 1.72% MBRF3 17.42 — 0.00% MBRFY 3.43 ▼ 2.83% INTER 5.85 ▼ 3.47% EGX 53,155 ▼ 0.49% USD/ZAR 16.67 ▲ 1.27% USD/NGN 1,367 ▼ 0.04% NIKKEI 61,409 ▼ 1.99% CSI300 4,860 ▼ 1.12% HSI 25,963 ▼ 1.62% NIFTY 23,644 ▼ 0.19% KOSPI 7,493 ▼ 6.12% JCI 6,723 ▼ 1.98% USD/JPY 158.73 ▲ 0.24% USD/CNY 6.8087 ▲ 0.36% DAX 23,951 ▼ 2.07% CAC 7,953 ▼ 1.60% FTSE 10,195 ▼ 1.71% MIB 49,116 ▼ 1.87% IBEX 17,623 ▼ 1.05% STOXX 606.92 ▼ 1.48% EUR/USD 1.1631 ▼ 0.34% GBP/USD 1.3326 ▼ 0.57% SPX 7,409 ▼ 1.24% DJI 49,526 ▼ 1.07% NDX 29,125 ▼ 1.54% RUT 2,793 ▼ 2.44% TSX 33,833 ▼ 1.27% VIX 18.43 ▲ 6.78% USD/CAD 1.3749 ▲ 0.24% US10Y 4.5950 ▲ 3.00%
since 2009
Sunday, May 17, 2026

Defense Updates Defense Monitor

Brazil’s nuclear submarine development sparks debate with the UN Atomic Energy Agency

By · July 31, 2023 · 2 min read

As part of a significant defense project for Brazil, the country is developing a nuclear submarine, as the cornerstone of Brazil’s marine defense

This venture involves military secrets regarding the vessel’s future reactor, which the country wishes to keep confidential.

However, this requirement has stirred a clash with the United Nations’ International Atomic Energy Agency (IAEA).

Given the strategic importance of the project, the Navy remains resolute in maintaining the confidentiality of the submarine’s technical data.

 Brazil’s nuclear submarine. (Photo Internet reproduction)

As a compromise, it has proposed implementing special procedures during IAEA inspections to ensure the protection of these secrets.

As an international nuclear regulator, the IAEA aims to apply the same inspection standards to Brazil’s submarine as it does for civilian atomic facilities.

This has been met with resistance from Brazil, and consequently, negotiations are underway.

The country must reach an agreement with the IAEA to avoid potential sanctions and to align with international treaties preventing the proliferation of atomic weapons.

In response to the IAEA’s concerns over nuclear proliferation, the Brazilian Navy stated that the international agency currently inspects any location where uranium enrichment occurs.

Brazil, since 1988, has managed a tightly controlled, small-scale uranium enrichment program under the Navy’s watchful eye.

However, the creation of the nuclear-powered submarine necessitates an expansion of this program.

In a show of regional cooperation and transparency, Brazil plans to involve Argentina in the IAEA negotiations.

They plan to leverage the Brazilian-Argentine Agency for Accounting and Control of Nuclear Materials, established in 1991, as a platform for these discussions.

This agency plays a crucial role in ensuring that atomic material from both nations isn’t misused for the creation of weapons of mass destruction.

Amidst these negotiations, Admiral Petronio Augusto Siqueira de Aguiar assured that Brazil would abide by the agreed-upon special procedures.

The Admiral has made two trips to the IAEA headquarters in Vienna, Austria, aiming to negotiate with the agency’s Director-General.

The goal is to ensure the confidentiality of technical data on the submarine’s nuclear material.

Adding another layer of complexity, the IAEA has never inspected a nuclear submarine reactor, as these are typically owned only by atomic powers.

Brazil, seeking to keep its operational data private, accepts inspections under conditions that safeguard its interests.

Finally, as part of Brazil’s ambitious Submarine Development Program (Prosub), the nuclear submarine is expected to make significant progress in the coming years.

The vessel’s reactor, assembled in the LABGENE laboratory at the Aramar Nuclear Industrial Center in Iperó, is expected to be ready by 2027.

Following this, the submarine itself, set to be built in Itaguaí, Rio, is anticipated to be completed by 2033.

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