Thank you, everyone, for joining us today. Welcome to China Automotive Systems' 2019 First Quarter Conference Call. Joining us today are Mr. Qizhou Wu, Chief Executive Officer; and Mr. Jie Li, Chief Financial Officer of China Automotive Systems. They will be available to answer questions later in the conference call with the assistance of translation.
Before we begin, I will remind all listeners that throughout this call, we will make statements that may contain forward-looking statements. Forward-looking statements represent the company's estimates and assumptions only as of the date of this call. As a result, the company's actual results could differ materially from those contained in these forward-looking statements due to a number of factors, including those described under the heading Risk Factors in the company's Form 10-K annual report for the year ended December 31, 2018, as filed with the Securities and Exchange Commission on March 28, 2019, and in other documents filed by the company from time to time with the Securities and Exchange Commission. The company expressly disclaims any duty to provide updates to any forward-looking statements made in this call or whether as a result of new information, future events or otherwise.
On this call, I will provide a brief overview and summary of financial results for the 2019 first quarter. Management will then conduct a question-and-answer session. The following 2019 first quarter financial results are unaudited and are reported in U.S. GAAP. For the purposes of our call today, I'll review the financial results in U.S. dollars.
We will begin with a review of recent dynamics of the automobile industry and China Automotive's market position. China's GDP growth in the first quarter of 2019 grew at 6.4%, the same rate as in the fourth quarter of 2018, which had slowed from 6.5% in the third quarter and 6.7% in the second quarter 2018. This GDP growth rate has been the weakest growth in the last decade. First quarter 2019 factory output climbed 8.5% and the fixed asset investment is up only 6% from last year.
In 2018, vehicle sales in China suffered its first yearly downturn in 20 years as the looming trade war, credit curves and volatile stock market affected consumer confidence and spending in China. Additionally, the vehicle purchase tax levy was raised from 7.5% to its former standard of 10% in 2018.
According to data reported by the China Association of Automobile Manufacturers, CAAM, in the first quarter of 2019, total vehicle sales declined by 11.3% year-over-year as passenger car sales slid 13.7% and commercial vehicle sales increased 2.2%.
China's passenger vehicle sales declined for the ninth consecutive month in March of 2019. Sales in the car, SUV and MPV segments decreased by 12.1%, 14.2% and 22.4% year-over-year in the first quarter of 2019. Chinese brand automaker sales declined by 20.7% year-over-year in the first quarter of 2019 and their market share dropped to 41.5%.
In the commercial vehicle segment, the traditional internal combustion-powered bus market continued to experience a significant year-over-year decrease in unit sales in the first quarter of 2019, while overall truck sales also declined.
The medium-duty truck diesel truck sales volume down 20.3%. In such a challenging environment, the net sales of our traditional hydraulic steering parts declined by 20.2% year-over-year to $87 million in the first quarter of 2019. This reduction reflects lower vehicle sales and market conditions in the first quarter of 2019.
Our electric power steering EPS product sales in the first quarter of 2019 also declined 11.2% to $22.2 million. As a percentage of net sales, EPS sales accounted for 20.3% in the first quarter of 2019 compared to 18.7% for the same period in 2018.
Our EPS sales reflect the initial growing stages of our Hubei KYB joint venture with Japan KYB Company Limited. We believe this joint venture with its focus on EPS technology and products has a solid potential for stronger future growth. We have transferred all our EPS business to the new joint venture, and we believe we will increase our market position in the Chinese market for EPS products as well as create stronger export prospects in the future.
As we further strengthen our technology base for both EPS and autonomous steering systems for future growth, we are optimistic regarding our new exclusive contract in 2019 with Great Wall Motor Company for EPS systems to steer its new all-electric small vehicle model ORA R150. Approximately 150,000 units are expected to be shipped in 2019 under this contract.
Additionally, in late 2018, one of our Tier 1 customers in North America awarded us a development program for a new recirculating-ball steering system, i-RCB program, for use in our autonomous vehicle product development. Commercial production of these products is expected in August 2019, with initial annual sales approximately 45,000 units.
In late December 2018, we entered into a new joint venture with Hyoseong Electric Co. Ltd. to produce small electric motors for use in EPS systems. These small electric motors not only add to our technology and production knowledge base to better position us to develop new steering products and to further broaden our product portfolio in the future, but also enhance our insourcing capability to improve our cost structure.
Our export sales to North America decreased by 15.6% year-over-year in the first quarter 2019. These were sales for our hydraulic steering products. We have received a new product development contract, as mentioned above, to develop recirculating-ball steering systems for use in that company's autonomous vehicle. We will be able to use the knowledge developed for these products to produce other similar products in the future.
First quarter 2019 income from operations was $1 million compared to $4.6 million in the same quarter of 2018. Net income attributable to parent company's common shareholders was $1.5 million or $0.05 per diluted share in the first quarter of 2019 compared to $4.3 million or $0.14 per diluted share in the first quarter of 2018. As of March 31, 2019, we had total cash, cash equivalents and pledged cash of $91.7 million.
Looking further into 2019, China's National Development and Reform Commission has announced new monitoring centers to promote growth in the automobile sector, in rural areas and even [ districts ] for trading and -- vehicles with older emission standards and to purchase more fuel-efficient compact vehicles. The plan will subsidize the replacement of cars complying with the 2007 emission regulation and cars with engines of 1.6 liters or smaller in rural areas.
In addition, in response to the slowing economic growth, the central government has offered a fiscal stimulus, credit loosening, debt restructuring and tax incentives for consumers to stabilize their increased economic growth and encourage consumer spending.
And some local state-owned companies are also adding centers. For example, SAIC Motor Corp in Shanghai, China's largest state-run automaker, has launched a subsidy supported by the local government to stimulate car purchases by trading in old vehicles.
Our broad product portfolio of high-quality steering products is maintaining our position as a premier steering product supplier to a large number of Chinese vehicles manufacturers and we continue to supply a number of Tier 1 vehicle manufacturers overseas.
With technology changes come challenges and opportunities. With our joint venture partners working with EPS, autonomous steering and other steering technologies, we are in a better position to accomplish our strategic goals in our targeted markets more quickly and with less risks.
Now let me review the financial results for the first quarter of 2019.
In the first quarter 2019, our net sales are $109.2 million compared to $134 million in the same quarter of 2018, reflecting an 18.5% year-over-year decline. The decrease in net sales was mainly due to lower sales volume for our legacy products in the domestic and North American passenger markets and the domestic heavy-duty vehicle market as well as the effect of foreign currency exchange.
Gross profit was $14 million in the first quarter of 2019 compared with $21.6 million in the first quarter of 2018. Gross margin was 12.8% in the first quarter of 2019 compared with 16.1% in the first quarter 2018 mainly due to changes in the product mix.
Gain on other sales was $1.3 million in the first quarter of 2019 compared to $1.5 million in the first quarter 2018, reflecting slower -- I'm sorry, lower scrap volume.
Selling expenses were $3.1 million in the first quarter of 2019 compared to $5.8 million in the first quarter of 2018. The decrease was primarily due to reduced logistics fees, reflecting lower sales volume and the use of lower-priced shippers. Selling expenses represented 2.8% of net sales in the first quarter of 2019 compared to 4.3% in the first quarter of 2018.
General and administrative expenses, G&A, were $4.6 million in the first quarter 2019 compared to $4.4 million in the same quarter of 2018. The increase primarily reflected higher personnel expenses. G&A expenses represented 4.2% of net sales in the first quarter of 2019 and 3.3% in the first quarter of 2018.
Research and development expenses, R&D, were $6.6 million in the first quarter 2019 compared to $8.3 million in the first quarter of 2018. R&D expenses represented 6% of net sales in the first quarter of 2019 compared to 6.2% in the first quarter 2018. The reduction in R&D expenses was due to increased cost controls.
Income from operations were $1 million in the first quarter of 2019 compared to $4.6 million in the same quarter 2018. The decrease is primarily due to lower gross profit and gross margin.
Interest expense was $0.6 million in the first quarter of 2019 compared to $0.4 million in the same quarter of 2018. The increase was due to increased bank borrowings at higher interest rates.
Net financial expense was $0.7 million in the first quarter of 2019 compared to net financial income of $0.8 million in the first quarter of 2018. The decrease in net financial expense was primarily due to an increase in financial income in the first quarter of 2019.
Income before income tax expense and equity in earnings of affiliated companies was $1.2 million in the first quarter of 2019 compared to $4 million in the first quarter of 2018. The decrease in income before income tax expenses and equity in earnings of affiliated companies was mainly due to lower income from operations.
Net income attributable to parent company's common shareholders was $1.5 million in the first quarter of 2019 compared to $4.3 million in the first quarter of 2018.
Diluted earnings per share were $0.05 in the first quarter of 2019 compared to $0.14 in the first quarter of 2018. The weighted average number of diluted common shares outstanding was 31,513,297 in the first quarter of 2019 compared to 31,644,044 shares in the first quarter of 2018.
Selected balance sheet items. As of March 31, 2019, total cash and cash equivalents and pledged cash were $91.7 million. Total accounts receivable, including notes receivable, were $264.3 million. Accounts payable were at $193.3 million and short-term bank and government loans were $65.9 million. Total parent company stockholders' equity was $292-point million (sic) [ $292.9 million ] as of March 31, 2019, compared to $285.9 million as of December 31, 2018.
Management has reiterated its revenue guidance for the full year 2019 of $510 million. This target is based on the company's current views on operating and market conditions, which are subject to change.
Operator, with that, we're now ready for questions.