[Interpreted] Okay. With our shutdowns of for rectification, Typhoon Lekima and COVID-19, it has been a long time since we achieved our even approved profitability with a strong market for bromine and our full current factory in operation, we are increasingly optimistic we look first to getting approval of our other 3 factories, completing construction of our new chemical factory and the natural gas production. In the near future, we will consider to issue long-term guidance so that our investor will be able to understand the opportunities the company believes we have in front of us.
So now let me turn the call back to Helen to review the third quarter results.
So now I will discuss about the third quarter results. Let's look at the revenue first. Revenue was $10.5 million, which is an increase of 130% from same quarter of 2019 and 96% from second quarter of 2020.
We are very pleased to be successfully ramping up production at our current 4 operating factories. We reduced loss from operations to approximately $2.9 million from $30 million last year and approximately $8.3 million in the previous quarter. We reduced our negative cash flow for the 9 months from $69.9 million to $6.6 million. Our income statements may be confusing to investors because so many of our business are closed or under construction. It sustained operating losses on our chemical factory, natural gas projects and closed bromine and crude salt factories.
In addition, with business also have substantial depreciation and amortization to provide investors with a better understanding, we are providing a measurement of profit and loss of the operating businesses. These numbers represent the best estimate of management, but are not audited here. So we estimate that the 4 operating factors made a net profit in the third quarter of approximately $3.1 million. This business also had $2.3 million in depreciation, which we're providing an estimated EBITDA earnings before interest, tax and depreciation of approximately $5.4 million.
So now let's look at the balance sheet. Although most of our facilities were closed for several years because of rectification, Typhoon Lekima and COVID-19, and although we have spent a lot of money building new factories and drilling new wells, our balance sheet remains strong. Cash at the end of the quarter was $95.6 million or $9.06 per share-based on the number of shares outstanding. Our net cash, which is cash minus liabilities, which was $81.3 million or $8.30 per share. We have enough cash to complete the construction of our chemical factory, do more wells and build more aqueduct in our 3 closed bromine and crude salt factory and drill additional natural gas well in Sichuan.
Our book value was $363.6 million or $26.37 per share. We have analyzed 8 years from 2009 through 2016 before the shutdown. During these years, our return on shareholders equity ranged from a low of 5.7% to a high of 26.6%, with an average of 12.7%. Based on our current book value and the shares outstanding, this could give us earnings per share range from $1.44 to $6.73, with an average of $3.21. We're not suggesting that we will earn any of this amount, we are merely using this as a reference. Cost performance does not guarantee future results, but these were our results in good years and bad when we are -- we were fully operational, as Mr. Liu said it, we look forward to providing investors with long-term projections as soon as we have a better visibility.
Now let's look at the cash flow part. We had a significant improvement in cash flow in 2020. For the 9 months, we had positive cash flow from operations of $3.2 million compared to a loss from operations of $12.3 million in the previous year, with a $9.9 million on property, plant equipment compared to $57.3 million in year 2019. In total, our net free cash flow was $6.6 million compared to $69.6 million, with many of our investments behind us and profitable operations from our operating properties, we look forward to generating positive cash flow in the future.
So now let's look at the segment information. Firstly, let's look at bromine and crude salt. Our bromine and crude salt factories ramped up products in the third quarter. Revenues increased to $10.5 million from $4.5 million, an increase of 130% on a sequential basis, the revenue increased 36% of debt in the second quarter. In the third quarter, bromine revenues increased to $9.2 million, an increase of 115% compared to the previous year and 105% compared to the second quarter of 2020. During the quarter, we sold 2,301 tons of bromine compared to the 1,222 tons in second quarter and 1,022 tons in the same quarter of the previous year. The bromine business had an operating profit of almost $2 million compared to a loss of $5.2 million in the same quarter of the previous year and a loss of $1.5 million in the second quarter of 2020. Management is pleased with the progress it is making in its bromine business.
The price of bromine continued to increase. In July, it was RMB around approximately RMB 26,700 per ton. By the end of September, it was about approximately RMB 30,000 per ton. And November, it reached RMB 32,278. The upward trend in bromine price may bring the company future revenue. We expect that production in the fourth quarter will be similar than that in the third quarter, with higher prices impact revenues and profit will increase continue as [indiscernible]. If bromine prices remain at current levels, we expect the profitable in the fourth quarter. So the company continues to be optimistic about getting approvals for factory #2, #8 and #10, by the first part -- first half of next year. There has been a delay in getting approvals as the government focuses on flood prevention as well as rectification so that another like Typhoon Lekima does not injure the population. Flood prevention regulations may require the company to modify some of the company's current aqueducts and wells. However, despite this delay, we are still optimistic about receiving approval and do not [indiscernible].
Waiting this approval, chemicals were making good progress on the construction of our chemical factory. The facility will have 3 buildings, all of which are under construction -- have 3 major buildings, all of which are under construction. We continue to estimate the cost at $60 million. To date, we have spent about $18.5 million. We still are planning to complete construction in the middle of 2021. We estimate it will take 6 months to install and test all of the equipment should begin trial production in early 2022.
Maintenance expects a strong return from this investment. In the 2 years, before the shutdown for rectification, our chemical business had operating earnings before corporate cost of $25.5 million in the year 2016 and $33 million in year 2015. While this new factory will be smaller than the combined to old factories, the company expects it to make higher net profit margin as we plan to focus more on the higher margin from a [indiscernible] intermediate product. We are optimistic by the progress we are making on construction of our new chemical factories.
Now at last let's look at the natural gas projects. The company continued to be encouraged by the opportunities to produce natural gas and brine products in Sichuan Province.
As discussed -- disclosed previously, Petro China discovery of natural gas in [indiscernible] is close to our current natural gas well. We believe its discovery could have a material positive impact on the company and may open opportunities for company. The company believes that the government will be more focused on finalizing the planning for exploration and exploitation of mineral resources in this area.
In addition, the company plans to proceed with its application for the natural gas and brine project approvals with related government department. After the government has finalized the land and resources planning for Sichuan Province. At the moment, we are not able to estimate when we can return to production but we remain quite optimistic that we will be able to produce both natural gas and brine product in Sichuan Province.
Corporate development. We are aware that our website is outdated. Our first step will be to improve the content and make sure it is up-to-date and correct. We should also consider to redesign the website. We are currently encountering some issues with the original website designer that hope to have [indiscernible] soon.
As Mr. Liu indicated, we are working on a long-term plan that we can share with the investors. One of the problem is that we have to understand timing and the action of the government. For example, we thought we would have our remaining bromine and crude salt factories approved by this time until the government received a mandate to consider flood control. However, we are working to come up with the methodology that will allow investors to understand our long-term plan and timing issues involved. Once our chemical factory is completed, we will continue to focus on ways to increasing our stock price and will focus on attracting new investors.
So at last, let's look at the management closing remarks. As you can see that the company is making exciting progress in ramping up the current bromine and crude salt facilities. We are pleased our operating business made a profit this quarter and look forward to the entire company finally making a profit. We are very excited about the opportunities in our chemical business. This business will focus on high-margin pharmaceuticals. We are encouraged by what we see Petro China doing [indiscernible] and think it will benefit the company.
As you can see from our press release and from the comment to this call that we are working hard to provide our investors with more and more useful information. We look forward to sharing our long-term plan with you. At the start of this call, if you think this period has been difficult for you as investors, imagine what it has been like for the management and employee of the company. However, we now have strong visibility into the future, and I'm very excited by what we see.
So now let's open up for the Q/A section.