Thank you, Renata, and good afternoon, everyone. I would like to start by welcoming each one of you to the video conference call to announce Gerdau's results for the fourth quarter of 2022 and the year-end closing. I hope all of you are doing well. And as Renata mentioned, also participating in this presentation, our CFO, Rafael Japur. And for both of us, it is always a pleasure to talk to you about our performance and answer questions that may come up during our presentation. I will start by talking about the international scenario and the highlights of the overall results, and then I will detail the performance of our business operation in the quarter. Next, Japur will come in to share some information about our financial performance. And finally, I will highlight some points on our ESG agenda. At the end, the 2 of us will be available to talk to you about any points you might want to exploit in more details. Before I continue, I would like to once again give a very special thanks to our employees in the countries where we operate for having contributed to another extraordinary year in the history of Gerdau, a 122-year history. So I will start talking about the macro environment in which Gerdau is a part of. Throughout 2022, we were able to test Gerdau's resilience against a challenging macroeconomic scenario. Gerdau is today an agile, modern and flexible company, the result of a profound cultural and digital transformation carried out in recent years which enabled us even in a complex scenario to have a historic year with exceptional results. We closely followed the unfolding of logistical and geopolitical challenges resulting from the continuing COVID-19 pandemic and the conflict between Russia and Ukraine, which brought uncertainties to the global economic and inflationary scenarios. One example of this impact was the pressure on production costs, especially energy costs. I emphasize, however, that even in the midst of this challenging scenario, Gerdau continued to perform very well as a result of its business model, geographic diversification in the Americas and an innovative mindset focused on the challenges and needs of our customers. Now turning to the next slides, the 2 next slides. I would like to briefly bring to you some highlights that reflect the solid performance posted by Gerdau in the fourth quarter. Later on, as I mentioned, Japur will give details of our financial performance. We ended the year with the highest net sales in Gerdau's history totaling BRL 82.4 billion. Also last year, we recorded the company's second best adjusted EBITDA, BRL 21.5 billion with an EBITDA margin of 26.1%. When we analyze our history, as you will see in this presentation, today, Gerdau is at a new level of financial and operating results. This performance demonstrates Gerdau's capacity to transform itself and continue sharing value with its customers and other stakeholders, offering in the market even more innovative and sustainable products and services. Today, the company stands out for its delivery, not only of solid financial results to our stakeholders, but of a transparent business strategy based on strong discipline and cost management and continuous improvement in assets competitiveness. A good example of that is the level of our sales, general and administrative expenses, the SG&A, which has remained at levels well below those our peers have. I also emphasize the performance of the North America business operation throughout 2022, which posted an adjusted EBITDA of BRL 10 billion with an EBITDA margin of 32%, both historical annual records. This result reflects the consolidation of our strategy and the positioning in the North American market and the management efforts deployed in recent years to advance the competitive levels of our operations in the region and generate even more value for our customers. In addition to the financial highlights, I would like to mention the establishment through Gerdau Next, our new business units complementary to steel, Ubiratã joint venture with SpaceTime Labs. The new company specializes in high technology and the development of platforms that integrate with everyday industrial life by means of artificial intelligence, autonomous systems and robotic operations. Ubiratã is yet another chapter in the journey of business transformation via digital that Gerdau has embraced in recent years, reinforcing the company's ability to adapt, innovate and transform itself over its 122-year history. So let's turn to the next slide. I will give more details on the highlights of each of our business operations and the outlook for the markets where Gerdau operates. On Slide #6, as I mentioned earlier, and now talking about our North America business operation, we have delivered record results in 2022. And the outlook for 2023 remains positive. Steel shipments to the local market in January were at the highest since 2015. And our order backlog in the United States remains at high levels, around 60 days. The steel demand has been positively influenced by the level of activity in the construction sector, which is expected to grow by more than 6% this year. In particular, the infrastructure segment should advance 16% by 2023, driven by projects linked to the infrastructure investment package, the results of which are beginning to be received. This package should generate additional steel demand by the next year as states advance in these projects. So this can already be seen though, in January, the North American government has announced, as an example, funds of $2.1 billion to revitalize bridges in the country. In addition to that, I should stress the re-shoring that has contributed to the consumption of domestic steel in the region. And also, we'll have also additional demands coming in the future from the IRA. Given the scenario, we continue to operate our mills in the region with a capacity utilization levels above 90%. We will continue to invest in improving the profitability and productivity of our North American units, aiming to share even more value with our customers. I will highlight now the investments in the Whitby mill in Canada, whose new melt shop will start operating this half of the year. And also an investment in the electric furnace in Midlothian, Texas plant seeking greater productivity and efficiency of the equipment. This last investment is part of a continuous investment plan directed at the Midlothian plant focused on the modernization and expansion of the product portfolio manufactured at the plant to meet the needs of local customers and consumers. I would like to say that our operation that has -- with the production of rebar and the state-of-the-art plant has right now, its best historical moment in terms of production, sales and financial results. It is benefited by the local market, but also by the commercial agreements with the United States and Canada and also the [indiscernible]. Now turning to the next slide to talk about our Special Steel operation as a financial highlight. Our adjusted EBITDA in 2022 was 40% higher than the previous year, driven by the current levels of profitability. In the United States, I emphasized that the CHIPS Act approved by the American government will contribute to increasing the number of the semiconductor plants in the country over the next few years, solving the chip shortage problem in the vehicle market, which has impacted the demand for specialty steels in recent years. There are around 30 projects, including expansions and greenfield units estimated in $200 billion. In terms of market the production of light vehicles in the United States should recover and stay above 15 million units. On the other hand, the estimate for the heavy vehicle sector remains positive with a forecasted increase of 5% in 2023, reaching more than 300,000 units. There is an additional investment of BRL 200 million in Monroe, Michigan is moving on as expected with this new investment, Monroe will be an SBQ producer, the most technological in the global market to cater to the future needs of our clients and continue searching for solutions for hybrid and electric cars segments. Now the perspective for here in Brazil are influenced by the lack of semiconductors and also uncertainties related to access to credit lines and high interest rates. In any case, the production of light vehicles should grow 4% in 2023 compared to 2022, according to the National Association of Vehicle Manufacturers, ANFAVEA. The production of heavy vehicles in turn, accelerated at the end of 2022 to the change in truck technology to Euro 6 standards. At the beginning of January, a new emission rule for heavy vehicles came into force. The agricultural machinery sector should maintain a favorable scenario with the modernization of the fleet amid good harvest levels. I also would like to reinforce that industries that consumes specialty steels, especially auto parts have proven to be very competitive in the global market, generating exports opportunities. I would like to highlight that we continue to advance with the new continuous casting of blooms and billets at Pindamonhangaba plant in São Paulo. Those products are in the certification phase with our customers. The equipment with a state-of-the-art technology allows a specialty steel unit to have a more automated process with better yield, resulting in the delivery of differentiated products and much higher quality catered to the demanding markets. Moving on to the next slide, I will talk about the long and flat steel scenario in Brazil, whose performance in the fourth quarter reflects an accommodation of the demand for steel in the different sectors in which we operate. After a period of 2 years, 2020 and 2021, when we did not have the seasonality of December, which is typical, 2022 once again behaved at similar standards of this month, bringing as additional elements to a drop -- a higher drop in the demand, the World Cup and expectations about the new elected government. We seized this period to have longer stoppage, planned downtime to recover the life of our assets. After a period of 2 years that we needed to have shorter stops, about 2023, we see a recovery in demand after the second part of January in the different areas in which we work. Our order book since then, since January 15, added to the expectation of future consumption of steel by our clients, make us confirm our initial projections that we will have a steel demand in 2023 in Brazil, in line to the one that we had in 2022. The steel consumption in residential and commercial construction sectors is still high and despite of the current concerns of the market regarding the number of new launches and also the level of inventories in some cities. The number of construction sites active in Brazil, for instance, has reached a historical record in February, over 10,000 construction sites, up 3% in the annual comparison. According to the last survey in the construction industry, the GDP of construction should increase 2.5% vis-a-vis the prior year. The sector can also benefit from the reforms in the housing programs aimed at the low-income segment over the next few quarters. Retail sales remain at a good level, but slower, but they can be positively impacted by new aid measures implemented by the government. I would like to point out that Gerdau's current business model has made the company less dependent on retail, allowing it to capture various market opportunities. In addition, I anticipate the resumption of large public investment in infrastructure works, thus acting as a driver of the country's growth. BD's disbursements in this segment are estimated at more than BRL 31 billion for this year. In addition, I would like to highlight the demand for steel from the industrial sector. It has settled at a high level, reflecting the good performance of the agribusiness, capital goods, machinery and equipment, a yellow line and energy segments. The growth of centralized generation, for instance, should reach 10.3 gigawatts in 2023, the highest ever recorded in the country. Solar and wind plant -- power plants should account for more than 92% of this expansion. Now moving on to the next slide, talking about the South America, start by Argentina, where the demand for steel from construction, agribusiness, energy and mining sectors remain strong which has stimulated sales in the local market. The Argentinian construction sector should repeat in 2023, the good performance posted in 2022 when the level of activity was up by 3.5%. The same scenario was repeated in the Uruguayan steel market. In Peru, in turn, despite the local political uncertainties, the demand for steel continues at good levels, boosted by the construction industry, which resulted in an increase of 9% in shipments to the local market in the fourth quarter vis-a-vis the previous quarters. So our outlook for this business operation remains positive in South America. I end this initial part. I now turn the floor to Japur to go into the details about our financial performance, and then I'll come back to talk about our ESG agenda. And later, we will have our Q&A session. Japur, the floor is yours.