中文：

西南药业是中国的一家制药企业，其前身为西南制药厂。然而，随着时间的推移和公司的发展，西南药业决定进行更名，以更好地体现公司的品牌形象和战略定位。那么，西南药业什么时候更名呢？

实际上，西南药业在很早之前就已经开始筹备更名。公司在对其品牌形象和战略定位进行深入分析之后，决定将公司名称更改为“重庆医药股份有限公司”。这一更名决策得到了公司董事会和股东大会的批准，并在2018年正式完成。

西南药业为什么要更名呢？首先，公司希望通过更名来提升其品牌形象和知名度，更好地展示公司的实力和价值。其次，随着公司业务的不断拓展和升级，原有的“西南药业”名称已经无法满足公司未来的发展需求。因此，更名成为了一种必然选择。

西南药业更名之后，公司的品牌形象得到了提升，并且更加符合公司的战略定位。同时，公司的业务也得到了进一步拓展和升级，成为了重庆市最大的医药企业之一。此外，公司的股票也在上交所上市交易，为公司未来的发展提供了更多的融资渠道。

总的来说，西南药业的更名决策是明智的，并且为公司带来了很多积极的影响。通过更名，公司不仅提升了品牌形象和知名度，还更好地展示了公司的实力和价值。同时，公司的业务也得到了进一步拓展和升级，为公司未来的发展提供了更多的机遇和挑战。

英文：

Southwest Pharmaceutical is a Chinese pharmaceutical company, formerly known as Southwest Pharmaceutical Factory. However, with the passage of time and the development of the company, Southwest Pharmaceutical decided to change its name to better reflect the company's brand image and strategic positioning. So, when did Southwest Pharmaceutical change its name?

In fact, Southwest Pharmaceutical started preparing for the name change quite early. After conducting in-depth analysis of its brand image and strategic positioning, the company decided to change its name to "Chongqing Pharmaceutical Co., Ltd." This name change decision was approved by the company's board of directors and shareholders meeting, and was officially completed in 2018.

Why did Southwest Pharmaceutical change its name? Firstly, the company wanted to enhance its brand image and visibility through the name change, to better showcase the company's strength and value. Secondly, with the continuous expansion and upgrading of the company's business, the original name "Southwest Pharmaceutical" had been unable to meet the company's future development needs. Therefore, a name change became an inevitable choice.

After changing its name, Southwest Pharmaceutical's brand image was enhanced and it was more in line with the company's strategic positioning. At the same time, the company's business has also been further expanded and upgraded, becoming one of the largest pharmaceutical companies in Chongqing. In addition, the company's stock has also been listed on the Shanghai Stock Exchange, providing more financing channels for the company's future development.

Overall, Southwest Pharmaceutical's decision to change its name was wise and brought many positive impacts to the company. Through the name change, the company not only enhanced its brand image and visibility but also better demonstrated its strength and value. Simultaneously, the company's business has been further expanded and upgraded, providing more opportunities and challenges for the company's future development.