Good day, ladies and gentlemen. Welcome to Pacasmayo's first quarter 2021 earnings conference call. At this time, all participants are in a listen-only mode, and please note that this call is being recorded. At the conclusion of our prepared remarks, we will conduct a question-and-answer session. I would now like to introduce your host for today's call, Ms. Claudia Bustamante, Investor Relations Manager. Ms. Bustamante, you may begin.
Thank you very much. Good morning, everyone. Joining me on the call today are Mr. Humberto Nadal, our Chief Executive Officer, and Mr. Manuel Ferreyros, our Chief Financial Officer. Mr. Nadal will begin our call with an overview of the quarter, focusing primarily on our strategic outlook for the short and medium term. Mr. Ferreyros will then follow with additional commentary on our financial results. We'll turn the call over to your questions. Please note that this call will include certain forward-looking statements. These statements relate to expectations, beliefs, projections, trends, and other matters that are not historical facts and are therefore subject to risks and uncertainties that might affect future events or results. Descriptions of these risks are set forth in the company's regulatory filings. With that, I'd now like to turn the call over to Mr. Humberto Nadal.
Thank you, Claudia. Welcome everyone to today's conference call. We hope all of you and your families continue to stay safe in this difficult time. This quarter, cement shipments were strong and proved once again our resilience. Despite partial lockdowns for the country through February, the main sales volume at the national level increased by 42.7% in the first quarter of 2021 compared to the previous year. The North clearly outperformed the rest of the country once again, as our shipments increased by 67.4% this quarter compared to the same period in 2020. Although this increase is partially due to the lack of sales during the last two weeks of the quarter in 2020, most of this growth comes from increased sales year-over-year , without taking into account the halt in operations.
If we compare only January and February in both years , where there was no lockdown before, there is still an increase of almost 40% in cement sales volume when comparing both periods. Really remarkable. Although sales of cement have been and continue to be the main driver of our growth, we are very pleased with the results of concrete and precast. As we mentioned last quarter, concrete sales had already started picking up, and during this quarter , they reached the peak levels we had achieved in 2019. We are confident that these levels are sustainable and should even accelerate in the upcoming quarters. We are especially confident in this because , as opposed to 2019, when we were serving demand from medium and large infrastructure and private projects, the demand now comes from small construction companies.
We have generated a new customer base that is much more atomized and should therefore be less volatile as it's less reliant on government spending or non-investment decisions by large private companies, which is especially important in these uncertain times. As reconstruction spending materializes during the upcoming quarters, concrete volumes should further accelerate. I would also like to mention the increase in sales of light precast materials such as precast blocks. Although this is a small percentage of our sales, I strongly believe its performance illustrates our success and our strategy to transform ourselves and provide the construction and building solutions the market needs. Growth in this segment has also stemmed from changes to our strategy and from tackling a large number of new and smaller clients. As with concrete, this allows us for less volatility as we rely on a more atomized customer base.
This growth has put some pressure on our margins due to the use of imported clinker. However, we have to always keep in mind that it is important not to lose focus on two key aspects that are important for understanding the reasoning behind using imported clinker. First, the use of imported clinker is directly related to higher profitability, even if it comes at a slight margin decrease in terms of percentage. We would simply be unable to sell the amount of cement we are selling if we did not import some clinker, and hence take a much higher loss in overall profit. Secondly, and more importantly, there is a clear benefit in delaying the investment in a new plant, both financially and in terms of strategy.
In order for a new kiln to be more profitable than using imported clinker, there needs to be a minimum and steady utilization rate, which we cannot guarantee right now since we are still uncertain about the sustainability of the current sales volume levels. We applied this strategy in 2017 with the Piura plant, and it worked beautifully. 2021 has started as a very strong year for us in terms of sales. We continue to deliver substantial increases in Cement, Concrete, and Precast shipments that come as a result of our constant effort to innovate, expand our markets, satisfy new niches, and always remember to be client-focused. We have already surpassed the most challenging year in our history, and we are willing and able to face the challenges that 2021 may bring.
We have almost 65 years of successful operating history in a country that has undoubtedly had its share of political turmoil during that period. We will work as hard as ever to continue fulfilling our purpose to transcend as a company through sustainable development and value generation, always with our people and our country's best interests as our undeniable focus. Before closing, there are two points I need to touch. I would like to inform you that , based on the strong results of first quarter and considering the fact that last year, as a precaution, we lowered our usual dividend, our board this morning has decided and approved a dividend of PEN 366 million that will be paid in the first week of July.
Our strong financial position and positive growth outlook have led us to this decision based on our old philosophy that the cash the company won't need should be given out to the shareholders. Finally, as I'm sure all of you are aware, Peru held presidential and congressional elections on April 11th, and the outcome has generated great uncertainty as one of the candidates disputing the election in the runoff represents left-wing anti-free market ideas. This uncertainty has, of course, spread to the stock market, and almost all Peruvian stocks have accumulated losses in the past weeks. Although we are absolutely confident in the strong fundamentals of our company, we can't avoid country risk, and this volatility will remain until there is a final outcome in the first week of June. I will now turn the call over to Manuel for a more detailed analysis of the financial results. Manuel?
Thank you, Humberto. Good morning, everyone, and I hope all of you and your families are staying safe and healthy. First quarter of 2021 revenues were, as Humberto mentioned, extraordinary, PEN 464.8 million, a 55.3% increase when compared to the same period of last year, mainly due to an increase in bagged cement shipments, as well as to the halt in commercialization during the last two weeks of the first quarter of 2020. The gross profit increased 44.8% in the first quarter of 2021 compared to the same period of 2020, mainly due to increased sales mentioned before, partially offset by higher costs, as we had to use imported clinker to support our growth.
Consolidated EBITDA was PEN 105.1 million in the first quarter of 2021, representing a 45.4% increase when compared to the first quarter of 2020, mainly due to the increased sales and the halt in commercialization during 2020. Turning to operating expenses, administrative expenses for the first quarter of 2021 increased 16.9% compared to the first quarter of 2020, in line with increased sales. However, if we look at administrative expenses as a percentage of our sales, they decreased compared to the same period of 2020, as we continue striving for savings. Selling expenses in the first quarter of 2021 only increased 3.6% compared to the first quarter of 2020, mainly due to an increase in advertising and promotion, offset by a decrease in the allowance for expected credit losses.
Moving on to the different segments, Cement, Concrete, and Precast sales increased 55.2% during the first quarter of 2021 compared to the same period of 2020, mainly due to increased sales of bagged cement, as well as increased sales of concrete and light precast materials, slightly offset by lower sales of heavy precast. Gross margin decreased 2.1 percentage points in the first quarter of 2021 when compared to the same period of 2020, mainly due to the higher cement production costs as a result of the use of imported clinker, as well as slightly lower average prices for cement and concrete due to the sales mix, as we sold more of our lower-priced products.
Sales of cement increased 62.7% in the first quarter of 2021 compared to the first quarter of 2020, mainly due to an increase in shipments of bagged cement as demand in the North continued booming during this quarter. Gross margin decreased four percentage points, mainly due to increased costs related to the use of imported clinker because of the sudden increase in demand, as well as lower average prices due to the sales mix. Concrete and paver sales increased 32.8%, and gross margin increased 0.8 percentage points, mainly due to higher sales to small construction companies. During the first quarter of 2021, precast sales decreased 33.3% compared to the first quarter of 2020, mainly due to decreased sales of heavy precast materials. It is important to note that light precast sales performed very well, as we expect them to continue increasing during the following quarters.
Gross margins increased 5.7 percentage points, mainly due to the increased sales of blocks, resulting in a high utilization rate in our plants, which allows us to achieve operational efficiencies. Quicklime sales in the first quarter of 2020 increased 23.2% compared to the same period of last year. Gross margin increased 1.5 percentage points compared to the first quarter of last year, mainly due to increased demand. Sales of Construction Supplies during the first quarter of 2020 increased 74.8% compared to the first quarter of 2020, mainly due to increased sales to self-construction and families working on home improvement projects, as well as a lower comparative basis due to the government-mandated lockdown during the first quarter of 2020. Gross margin decreased 4.5 percentage points in the first quarter of 2021 compared to the same period of last year.
During the first quarter of 2020, the profit for the period was PEN 31.8 million, a 197.2% increase compared to the first quarter of last year, primarily due to an increase in revenues and operating profit, as well as a lower comparative basis due to the halt in operations during the last two weeks of the quarter in 2020. In terms of debt, our adjusted debt in Peruvian nuevo sol, considering the exchange rate of the cross-currency swap hedging agreements , amounts to PEN 1,210 million. This debt represents 3.47 x EBITDA. We expect that this will continue increasing as EBITDA for the last 12 months still shows the effect of the two -month halt in general commercialization during 2020. What we expect in the next quarter, this ratio should be under 3x EBITDA. To summarize this quarter's results, shows the resilience in volume despite localized lockdowns that affect other industries.
We are now seeing strong growth across all segments, which aligns us with our long-term strategy. We're convinced of the financial and operational strength of our company and hope the political uncertainty can settle soon enough to let our stakeholders benefit from the true value of our company. Can we now please open the calls to questions?
Thank you. The floor is now open for questions. If you do have a question, please press star then one on your telephone keypad to join the queue. If you're using a speakerphone, please pick up your handset to provide the best sound quality. Again, ladies and gentlemen, if you do have a question or comment, please press star then one on your telephone keypad at this time. We'll go to the line of Andres Soto with Santander. Please go ahead.
Good morning, Humberto, Manuel, and Claudia. I hope you and your families are well. Maybe the natural question that one should ask is what has changed since February that makes you guys decide to postpone the capacity expansion and rather make a dividend distribution? I suspect I know the answer to that question, so I will rather ask if the same level of cautiousness is what you guys are seeing among your customers and if we should expect this to affect Pacasmayo's volumes in the second quarter.
Hello, Andres. I hope you're doing well, your family. Let's face it. What I said is absolutely true. Last year, our dividend , which was normally running around PEN 50 million, we lowered it by half. The fact of the matter is , sales remain strong. We're very confident about that. If you see our debt level, considering that a potential expansion in the Pacasmayo plant is going to spread over the next three years, we feel like we have enough room in our balance sheet to accommodate an investment of that sort. Nothing has really changed in terms of that.
In terms of the dividend, of course, we have to take into consideration everything surrounding us, but we have always, and we've talked about this in the past many times, we strongly believe that the cash that is not needed by the company belongs to shareholders. We have only acted upon what we have always predicated.
Perfect. You are not seeing a slowdown in volumes related to the political uncertainty, to put it in different words?
Not at all.
Perfect. My second question related to outsourced clinker. I would like to understand if you have already depleted the expensive inventory you had or if you continue expecting we should expect this to continue to be a factor in your margin performance over the next few quarters.
Yes, Andres. Hello, this is Manuel. Yeah, we should expect the same percentage of gross margin in this second quarter and basically in the second quarter because we have a main maintenance of the kiln Pacasmayo and the kiln in Piura. This should pick up again in the third and fourth quarters of this year.
If I may complement an answer that question, Andres, I mentioned in my speech, I think it's very important to realize that when we analyze the over cost of imported clinker, which runs around probably $20 - $21 per ton, we compare it to how much are we saving in terms of financial cost of deferring the investment for the time being until we have a higher need. If we think that the Pacasmayo expansion is going to take between $220 million-$250 million at a n interest of 6% or 8% , we believe that as long as we are south of 700,000 tons, we are more or less neutral to both positions. At the time, we are still very south of that.
We did it for Piura. Only when we were importing over 500,000 tons at that moment, now the amount is a little bit higher, we decided to make the investment. We are very positive about our investment. We are always watching the sales to see when the exact moment is to trigger the decision.
That's very clear. Thank you so much.
Next , we go to the line of Josseline Jenssen with Lucror Analytics. Please go ahead.
Hi. Thank you very much for taking my question. Could you provide a view of this political situation , and if the outcome favors Pedro Castillo, the left-wing candidate, do you see any potential risk for your business?
I think that's a very good question, and if I was a political analyst, I would have a better answer. The way I see it is the country has to decide five weeks from now what kind of model , in terms of political and economic , it wants for its future. I think if we take what has been going on over the last elections, Peru has been usually a country that's more on the moderate center-left. I believe that this will also be the way the country will go. Of course, I have no guarantee of that, but my experience tells me that.
In the event that Mr. Castillo becomes the president, we would need more clarity on exactly what he intends to do, as only now we are still finding out his potential government plan and what he decides to do. I think at this point, there's not much I can comment on that.
Okay. Thank you very much.
You're welcome.
That is all the signals we have at this time. We'll return to Humberto Nadal for closing remarks.
Thank you very much. I want to thank everybody today for their continued interest in Pacasmayo. Pacasmayo, at 65 years, we have sailed through different kinds of waters, storms, and the peaceful waters, but we are very positive both on the fundamentals of the company, and we will always remain very positive on the potential this country offers and has offered in the past for our businesses. We remain committed to our country. We remain committed to our regions in which we operate. We remain committed to our clients, our customers, and our workers, as we did during the pandemic and the COVID times. We are always cautiously optimistic. The numbers give us a reinforcement on why we should remain optimistic, and we will keep working.
No matter who wins the elections, we will keep working very strongly to deliver always the best results in the value creation for our shareholders that we have been doing over the last 65 years. Thank you very much for your time and your interest.
Thank you. This does conclude today's teleconference. We thank you for your participation. You may disconnect your lines at this time. Have a great day.