that mixed reform can indeed effectively improve 
the growth rate of economic benefits of enterprises 
(He, Ji, 2014). After the reform of state-owned en-
terprises, the first problem to be solved is the redis-
tribution of control rights. Ou Ruichao et al. studied 
the problem of partial privatization between "com-
plete state-owned" and "complete private", and 
found that partial privatization is the optimal privati-
zation strategy of State-Owned enterprises, and its 
balanced social welfare level is the highest among 
the three competition modes (Ou, Li, Li, Li, 2014).  
Hao Yunhong and Wang Qian found that if the 
private capital can play the proper governance effi-
ciency in the chaotic reform, the second largest pri-
vate shareholder and the largest state-owned share-
holder need to balance each other (Hao, Wang, 
2015). Therefore, the basic idea of state-owned en-
terprise reform should be as follows:  State-owned 
enterprises from leading the market supply role to 
supplement the market supply role of the follower. 
At present, in the process of state-owned enterprises' 
mixed ownership reform, strategic investors are 
mainly used to increase capital and become share-
holders. 
3  MATERIALS AND METHODS 
3.1  Case Background and Mixed 
Causes 
(I) Basic information of Both Parties   
Zhuhai Gree Electric Appliances Co., Ltd. was es-
tablished in 1991. Now, gree has developed into a 
diversified and technology-based global industrial 
manufacturing group, covering two fields of con-
sumer goods and industrial equipment, and its prod-
ucts are sold to more than 160 countries and regions.   
Zhuhai Mingjun was established in May 2017, 
engaged in equity investment business. The compa-
ny's two major shareholders are Zhuhai Botao Zhi-
heng Enterprise Management Consulting Center and 
Shenzhen Hillhouse Heying Investment Consulting 
Center. The executive partner is Zhuhai Xianying 
Equity Investment Partnership (limited partnership).  
(2) Analysis of Mixed Factors   
In April 2019, Gree Electric Appliances started a 
new round of mixed-ownership reform. This mixed-
ownership reform is a development choice under the 
background of the state's efforts to promote the re-
form of state-owned enterprises. It is also a strategic 
move promoted by The State-owned Assets Supervi-
sion and Administration Commission of Zhuhai 
based on the current economic development situa-
tion of Zhuhai city and the bottleneck of enterprise 
development faced by Gree.  Gree Electric Appli-
ances chooses to carry out mixed reform at this time 
mainly for the following reasons:   
① Optimize ownership structure and improve 
corporate governance. In this reform, Gree Electric 
Appliances introduced strategic investors and en-
tered the state of no real controller. This change 
makes it easier for social capital to enter state-owned 
enterprises, enabling the high-quality development 
of state-owned enterprises.   
② Air conditioning market gradually saturated, 
fierce competition. Gree's main product is air condi-
tioning business, which is in the highly competitive 
home appliance industry. In recent years, the overall 
sales scale of the domestic air conditioning market 
has decreased while the competition between indus-
tries has intensified.  The introduction of strategic 
investors can bring abundant new market resources 
for the company to meet the development needs of 
air conditioning business.   
③ Break the single situation of business and 
promote the implementation of diversified business. 
Gree Electric Appliances' business model is relative-
ly centralized and single, and air conditioning busi-
ness has always been the main source of business 
income. The introduction of strategic investors in the 
mixed reform can bring high-quality new resources 
and technologies to enterprises, improve their ability 
to resist risks, accelerate the layout of diversified 
businesses, enhance competitive advantages and 
break through the existing development bottlenecks.  
3.2  Business Performance Analysis 
Method 
When evaluating the operating performance of Gree 
Electric Appliances after the change of control right, 
it is necessary to adopt relative performance evalua-
tion, considering not only the change of its own 
performance, but also the change of other similar 
companies in the same industry.  The main criteria 
for the selection of control samples are the same 
industry, state-owned enterprises, and performance 
close to Gree Electric Appliances. Due to gree Elec-
tric Appliances' leading position in the household 
appliance industry, there is no state-owned enter-
prise whose performance is similar to Gree Electric 
Appliances among the enterprises whose main busi-
ness is air conditioning. Therefore, midea and Haier, 
two non-state-owned enterprises with similar busi-
ness composition and revenue scale to Gree, are 
included in the control sample.