costs as well as the absence of the temporary shutdown that affected the Shenzhen manufacturing facility in the first quarter of 2020, an event which increased cost of goods in the preceding quarter.
Operating expenses for the second quarter were approximately $0.3 million higher than in the first quarter, but down 39% year-over-year. Second quarter GAAP operating expenses included a one-time charge of $2 million for the proposed settlement of prior shareholder suits and associated legal expenses of approximately $0.4 million, which settlement is subject to court approval. Both Research and Development and Sales and Marketing expenses declined sequentially as Sonim seeks to maximize efficiency of its operating costs, consistent with its goal to lean out operations under its new business model.
Net loss for the second quarter of 2020 totaled $7.1 million or $(0.22) per basic and diluted share (based on 31.6 million shares), compared to net loss of $10.0 million, or $(0.48) per basic and diluted share (based on 20.6 million shares), in the first quarter of 2020.
Balance Sheet
Sonim ended the quarter with $38.1 million in cash and equivalents, and no long-term debt. Net cash provided by operating activities was $5.7 million through the first six months of 2020. Inventory was $15.2 million at quarter end, and accounts receivable $5.3 million. Working capital totaled $36.2 million, up from $19.7 million at December 31, 2019.
Conference Call
Sonim Technologies will hold a conference call today, Wednesday August 12, at 1:30 p.m. Pacific Time (4:30 p.m. Eastern Time) to discuss these results and provide an update on business conditions. To join the call, please dial +1-412-317-6060. To listen to a live webcast of the call, please visit https://www.sonimtech.com/ and select About, then Investor Relations. The webcast will be available as a replay on Sonim’s website following completion of the call. A telephonic replay will be available for 14 days approximately 3 hours after the call concludes by dialing +1-412-317-0088 and entering access code 10146839.
About Sonim Technologies, Inc.
Sonim Technologies is a leading U.S. provider of ultra-rugged mobility solutions designed specifically for task workers physically engaged in their work environments, often in mission-critical roles. The Sonim solution includes ultra-rugged mobile phones, a suite of industrial-grade accessories, and data and workflow applications which are collectively designed to increase worker productivity, communication and safety on the job site. For more information, visit www.sonimtech.com.
Important Cautions Regarding Forward-Looking Statements
This release contains forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995. These statements relate to, among other things, future growth, profitability, continued market acceptance of the Company’s products. These forward-looking statements are based on Sonim’s current expectations, estimates and projections about its business and industry,
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